语音和统一通信 : Cisco Unified Communications Manager (CallManager)

调试 MGCP 包示例

2015 年 8 月 28 日 - 机器翻译
其他版本: PDFpdf | 英语 (2014 年 9 月 22 日) | 反馈


目录


简介

本文包含调试MGCP包示例多种介质网关控制协议(MGCP)呼叫顺序信息包获取。每个顺序在表里按年代顺序地显示。表包含消息(MSG)并且译解字段。MSG字段包含实际debug输出,并且解码字段解释之前的调试消息。目前,有调试顺序显示:

本文是文档套件的第5部分。

  1. 配置带 IOS MGCP 网关(模拟 FXO、FXS 端口)的 Cisco CallManager 3.x

  2. 配置 Cisco IOS MGCP 网关

  3. 在Cisco CallManager服务器上配置MGCP网关和FXO/FXS端口

  4. 验证并且排除Cisco IOS MGCP网关故障

  5. 调试 MGCP 包示例

  6. 监控、重置和删除Cisco CallManager的MGCP网关

先决条件

要求

本文档没有任何特定的要求。

使用的组件

此配置用Cisco CallManager 3.0, 3.1和3.2和Cisco IOS�软件版本12.2镜像多种版本测试。屏幕画面和Cisco IOS配置捕获使用软件、硬件和如下所示的其他设备。

  • 1 *Cisco VG200/2 X FXS/2 X FXO/1快速以太网10/100端口;Cisco IOS 软件版本 12.1(5)T

  • 运行在MCS7835的1 *Cisco CallManager 3.0(5a)

  • 2 *模拟电话听筒

  • 2 * Cisco 7960 IP 电话

本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始(默认)配置。如果您使用的是真实网络,请确保您已经了解所有命令的潜在影响。

对于在Cisco CallManager和Cisco IOS网关之间的推荐的兼容性软件版本,参考Cisco CallManager软件版本比较

注意: Cisco IOS软件版本12.2(11)T或以后根据ccm-manager命令增强推荐。ccm-manager命令要求Cisco IOS软件版本12.1(5)XM或稍后所有路由器(Cisco 2600及3600)和Cisco语音网关200 (VG200)。

Cisco 2600及3600路由器支持MGCP,如果他们运行Cisco IOS软件版本12.1(3)T或以后。您需要的版本决定于您需要启用的功能。Cisco CallManager服务器一定运行版本3.0(5)a或以上。所有类型路由器的配置是相同。Cisco CallManager配置对于所有类型的路由器都是相同的。

Cisco IOS软件版本12.1(5)xm1及以上版本版本支持VG200。您需要的版本决定于您需要启用的功能。虽然Cisco CallManager更早版本支持VG200,推荐版本3.0(5)a或以上。

规则

有关文档规则的详细信息,请参阅 Cisco 技术提示规则

当话筒是摘机和用户拨号数位时,请调试顺序为

MSG字段在如下所示的表里是debug mgcp packets命令输出,当电话是摘机时和用户拨号数位的捕获。解码字段提供debug命令生成的MGCP消息的解释。

MSG
21:50:26: send_mgcp_msg, MGCP Packet sent --->
NTFY 41 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: L/hd
解码
NTFY 41  

!--- This is the notify (NTFY) message sent to the call agent to report
!--- an observed event. The number 41 is the notify sequence number. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination 
!--- User Datagram Protocol (UDP) port number.

X: 50  

!--- The request ID is 50. 

O: L/hd  

!--- The observed event (O) off-hook (hd) is detected
!--- with use of line package (L).

MSG
21:50:26: MGCP Packet received <--- 
200 41 OK
解码
200 41 OK  

!--- This receive acknowledgement states that NTFY sequence 
!--- 41 was executed normally.

MSG
21:50:26: MGCP Packet received <--- 
RQNT 1825 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N),D/[0-9!--*T](D) 
S: L/dls
解码
RQNT 1825  

!--- This is the notification request (RQNT) message sent to the call
!--- agent to report the observed event. The sequence number is 1825. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination UDP port number. 

X: 50  

!--- The request ID is 50. 

R: L/hu(N),  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists. 

D/[0-9!--*T](D) 

!--- Additionally, the call agent requests that this 
!--- residential gateway collect digits 0–9 plus and * until 
!--- the interdigit timeout (T) expires. 

S: L/dl  

!--- The call agent sends a signaling request (S) to have this 
!--- gateway use the line (L) package 
!--- and play dial tone (dl) for 16 seconds.

MSG
21:50:26: send_mgcp_msg, MGCP Packet sent ---> 
200 1825 OK
解码
200 1825 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 1825 was executed normally.

MSG
21:50:41: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 42 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: D/16783201735
解码
NTFY 42  

!--- The notify message is sent to the call agent to report the observed  
!--- event. The notify sequence number is 42. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 
!--- MGCP endpoint ID. 
MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  
!--- Request ID is 50. 
O: D/16783201735  

!--- This residential gateway sends an observed event message
!--- that states that it collected the digits (16783201735) which conformed 
!--- to the digit map.

MSG
21:50:41: MGCP Packet received <--- 
200 42 OK
解码
200 42 OK  

!--- This receive acknowledgement states that NTFY sequence 
!--- 42 was executed normally.

MSG
21:50:41: MGCP Packet received <--- 
RQNT 1828 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N)
解码
RQNT 1828  

!--- This is the notification request message sent to the call agent 
!--- to report the observed event. The sequence number is 1828. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  
!--- Request ID is 50. 
R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
21:50:41: MGCP Packet received <--- 
RQNT 1828 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N)
解码
RQNT 1828  

!--- The notification request message is sent to the call agent 
!--- to report the observed event. The sequence number is 1828. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number.

X: 50

!--- The request ID is 50. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
21:50:41: MGCP Packet received <--- 
RQNT 1828 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N)
解码
RQNT 1828  

!--- The notification request message is sent to the call agent to report 
!--- the observed event. The sequence number is 1828. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
21:50:41: MGCP Packet received <--- 
RQNT 1828 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N)
解码
RQNT 1828  

!--- The notification request message is sent to the call agent to report 
!--- the observed event. The sequence number is 1828.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
21:50:41: send_mgcp_msg, MGCP Packet sent ---> 
200 1828 OK
解码
200 1828 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 1828 was executed normally.

接收忙音的话筒的调试顺序

MSG字段在如下所示的表里是debug mgcp packets命令输出,当电话是摘机时,拨号数位的捕获,然后接收忙音。解码字段提供debug命令生成的MGCP消息的解释。

MSG
21:55:40: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 98 aaln/S1/SU0/0@c26002.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 53 
O: D/16783201733
解码
NTFY 98  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 98. 

aaln/S1/SU0/1@c26002.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1 

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination User Datagram Protocol (UDP)
!--- port number. 

X: 53  
!--- Request ID is 53. 
O: D/16783201733  

!--- This residential gateway sends an observed event (O) message
!--- that states that it collected the digits (16783201733) which conformed to the  
!--- digit map. 

MSG
21:55:40: MGCP Packet received - 
200 98 OK
解码
200 98 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 98 was executed normally.

MSG
21:55:40: MGCP Packet received - 
RQNT 1845 aaln/S1/SU0/0@c26002.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 53 
R: L/hu(N)
解码
RQNT 1845  

!--- This is the notification request message received from 
!--- the call agent to report the observed event. The sequence number is 1845.
 
aaln/S1/SU0/1@c26002.atl0.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination UDP port number. 

X: 53  

!--- The request ID is 53. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
21:55:40: send_mgcp_msg, MGCP Packet sent ---> 
200 1845 OK
解码
200 1845 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 1845 was executed normally.

MSG
21:55:40: MGCP Packet received - 
RQNT 1846 aaln/S1/SU0/0@c26002.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 53 
R: L/hu(N) 
S: L/bz
解码
RQNT 1846  

!--- This is the notification request message received from the call agent to 
!--- report the observed event. The sequence number is 1846.

aaln/S1/SU0/1@c26002.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 53  

!--- The request ID is 53. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

S: L/bz  

!--- The call agent sends a signaling request (S) to have this gateway 
!--- use the line (L) package and play busy tone (bz) for 30 seconds.

MSG
21:55:40: send_mgcp_msg, MGCP Packet sent ---> 
200 1846 OK
解码
200 1846 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 1846 was executed normally.

显示产生和终止端的完全网内语音呼叫

当完整电话做并且被切断时, MSG字段在如下所示的两个表里是debug mgcp packets命令输出的捕获。而第二个表表示终止端的前景,第一个表从始发端的角度显示呼叫。解码字段提供debug命令生成的MGCP消息的解释。

始发端

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 166 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: L/hd
解码
NTFY 166  

!--- The notify message is sent to the call agent to report the  
!--- observed event. The notify sequence number is 166.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

O: L/hd  

!--- The observed event (O) off-hook (hd) is detected with use of line (L)
!--- package.

MSG
1d00h: MGCP Packet received - 
200 166 OK
解码
200 166 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 166 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2877 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N),D/[0-9!--*T](D) 
S: L/dl
解码
RQNT 2877  

!--- This is the notification request message received from the call agent to 
!--- report the observed event. The sequence number 2877.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID (X) is 50. 

R: L/hu(N),  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists. 

D/[0-9!--*T](D) 

!--- Additionally, the call agent requests that this
!--- residential gateway collect digits 0-9 plus and * until the 
!--- interdigit timeout (T) expires. 

S: L/dl  

!--- The call agent sends a signaling request (S) to have 
!--- this gateway use the line (L) package and play 
!--- dial tone (dl) for 16 seconds. 

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2877 OK
解码
200 2877 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2877 was executed normally.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 167 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: D/6783201737
解码
NTFY 167  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 167.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

O: D/16783201737  

!--- This residential gateway sends an observed event (O) message
!--- that states that it collected the digits (16783201737) which conformed to the 
!--- digit map.

MSG
1d00h: MGCP Packet received - 
200 167 OK
解码
200 167 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 167 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2878 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N)
解码
RQNT 2878  

!--- This notification request message is sent from the call agent 
!--- to report the observed event. The sequence number is 2878.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID (X)  is 50. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2878 OK
解码
200 2878 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2878 was executed normally.

MSG
1d00h: MGCP Packet received - 
CRCX 2879 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
C: 64 
L: p:20, a:PCMU;PCMA;G726-32,  e:on,  s:on, t:00 
M: recvonly
解码
CRCX 2879  

!--- This is the create connection (CRCX) message received from the call agent.  
!--- The sequence number is 2879.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 64  

!--- The call identification number (C) is 64.
!--- Note: This is NOT the callerid.

L: p:20  

!--- This local connection option (L) specifies that the packetization 
!--- period (p) is 20 milliseconds. 

a:PCMU;PCMA;G726-32  

!--- The compression algorithm (a) options are: u-law pulse code modulation (PCM),
!--- a-law PCM, or 32 kbps G.726. 

e:on,  s:on  

!--- The call agent has set both echo cancellation (e) and silence 
!--- suppression (s), also known as voice activity detection (VAD), to enable.

t:00  

!--- The type of service (t) for this call is 0. 

M: recvonly  

!--- The connection mode (M) is received only at this point, which allows 
!--- only ring-back tone.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2879  
I: 18 
v=0 
c=IN IP4 192.168.25.2 
m=audio 16386 RTP/AVP 0 8
解码
200 2879  

!--- This sent acknowledgement states that CRCX sequence 
!--- 2879 was executed normally. 

I: 18  

!--- The connection identification number is 18.
 
v=0  

!--- The session description protocol (SDP) version is 0. 

c=IN IP4 192.168.25.2  

!--- The connection data (c) field specifies an Internet (IN) IP 
!--- version 4 address of 192.168.25.2. 

m=audio 16386 RTP/AVP 0 8  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination User Datagram Protocol (UDP) port 16386 for voice-bearer traffic,   
!--- and Real-Time Transport Protocol (RTP) encapsulation using
!--- audio video profile (AVP) with RTP payload type of 0 or 8.

MSG
1d00h: MGCP Packet received - 
MDCX 2881 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
I: 18 
C: 64 
M: recvonly 
v=0 
c=IN IP4 192.168.25.6 
t=0 0 
m=audio 16388 RTP/AVP 0
解码
MDCX 2881  

!--- This is the modify connection (MDCX) message received from the call agent.  
!--- The sequence number is 2881.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 18  

!--- The connection identification number is 18. 

C: 64  

!--- The call identification number (C) is 64.
!--- Note: This is NOT the callerid. 

M: recvonly  

!--- The connection mode (M) is received only at this point, which allows 
!--- only ring-back tone. 

v=0  

!--- The SDP version is 0. 

c=IN IP4 192.168.25.6  

!--- The connection data (c) field specifies an Internet (IN) IP 
!--- version 4 address of 192.168.25.6. 

m=audio 16386 RTP/AVP 0  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination UDP port 16386 for voice-bearer traffic, and RTP 
!--- encapsulation using AVP with RTP payload type of 0.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2881 OK
解码
200 2881 OK  

!--- This sent acknowledgement states that MDCX sequence 
!--- 2881 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2883 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N) 
S: G/rt
解码
RQNT 2883  

!--- The notification request message is sent from the call agent 
!--- to report the observed event. The sequence number is 2883.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID (X) is 50. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exists. 

S: G/rt  

!--- The call agent sends a signaling request (S) to have this gateway 
!--- use the generic (G) package and play the ring-back tone (rt). 

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2883 OK
解码
200 2883 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2883 was executed normally.

MSG
1d00h: MGCP Packet received - 
MDCX 2885 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
I: 18 
C: 64 
M: sendrecv
解码
MDCX 2885  

!--- This is the modify connection (MDCX) message received from the call agent. 
!--- The sequence number is 2885.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 18  

!--- The connection identification number is 18.
 
C: 64  

!--- The call identification number (C) is 64. 
!--- Note: This is NOT the callerid.

M: sendrecv  

!--- The connection mode (M) is a two-way send and receive at this point, 
!--- which allows full conversation.
 
MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2885 OK
解码
200 2885 OK  

!--- This sent acknowledgement states that MDCX sequence 
!--- 2885 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2886 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N),L/hf(N) 
S: 
解码
RQNT 2886  

!--- The notification request message is sent from the call agent
!--- to report the observed event. The sequence number is 2886.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID (X)  is 50. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) or hook flash (hf) condition exists. 

S: 

!--- The call agent sends a signaling request (S) to have this gateway 
!--- signal nothing, which stops the playout of the ring-back 
!--- tone (rt).

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2886 OK
解码
200 2886 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2886 was executed normally.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 168 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: L/hu
解码
NTFY 168  

!--- The notify (NTFY) message is sent to the call agent to report
!--- the observed event. The notify sequence number is 168.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number.
 
X: 50  

!--- The request ID is 50. 

O: L/hu  

!--- This residential gateway sends an observed event (O) that the 
!--- user went on-hook or hung up (hu).

MSG
1d00h: MGCP Packet received - 
200 168 OK
解码
200 168 OK  

!--- This receive acknowledgement states that NTFY sequence 
!--- 168 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2888 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hd(N)
解码
RQNT 2888  

!--- The notification request message is sent from the call agent 
!--- to report the observed event. The sequence number is 2888.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

R: L/hd(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an off-hook (hd) condition exists.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2888 OK
解码
200 2888 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2888 was executed normally.

MSG
1d00h: MGCP Packet received - 
DLCX 2890 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
I: 18 
C: 64
解码
DLCX 2890   

!--- The deleted connection (DLCX) message is received from the call agent.  
!--- The sequence number is 2890.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

I: 18  

!--- The connection identification number is 18. 

C: 64  

!--- The call identification number (C) is 64.
!--- Note: This is NOT the callerid.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
250 2890  
P: PS=305, OS=47685, PR=501, OR=79722, PL=4, JI=288, LA=3
解码
250 2890  

!--- This sent acknowledgement states that the connection was deleted.
!--- The DLCX sequence number is 2890. 

P: PS=305,  

!--- The connection parameters (P) give call statistics.
!--- The number of packets sent (PS) is 305. 

OS=47685,  

!--- The number of octets sent (OS) is 47685. 

PR=501,  

!--- The number of packets received (PR) is 501. 

OR=79722,  

!--- The number of octets received (OR) is 79722. 

PL=4,  

!--- The number of packets lost (PL) is 4. 

JI=288,  

!--- The jitter (JI) is 288 milliseconds. 

LA=3  

!--- The latency (LA) is 3 milliseconds.

终止端

MSG
1d00h: MGCP Packet received - 
CRCX 2899 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
C: 65 
L: p:20, a:PCMU;PCMA,  e:on,  s:on, t:00, nt:IN 
M: sendrecv 
v=0 
c=IN IP4 192.168.25.6 
t=0 0 
m=audio 16384 RTP/AVP 0 8
解码
CRCX 2899  

!--- The create connection (CRCX)  message is received from the call agent.  
!--- The sequence number is 2899.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 65  

!--- The call identification number (C) is 65.
!--- Note: This is NOT the callerid.

L: p:20  

!--- This local connection option (L) specifies that the packetization 
!--- period (p) is 20 milliseconds. 

a:PCMU;PCMA  

!--- The compression algorithm (a) options are: u-law pulse code modulation (PCM)
!--- or a-law PCM.

e:on,  s:on  

!--- The call agent has set both echo cancellation (e) and silence
!--- suppression (s), also known as VAD, to enabled. 

t:00  

!--- The type of service (t) for this call is 0. 

nt:IN  

!--- The type of network (nt) is Internet (IN).

M: sendrecv  

!--- The connection mode (M) is a two-way send and receive at this point, 
!--- which allows full conversation. 
 
v=0  

!--- The SDP version is 0. 

c=IN IP4 192.168.25.6  

!--- The connection data (c) field specifies an Internet (IN) IP version 
!--- 4 address of 192.168.25.6. 

t=0 0  

!--- The (t) represents the start (0) and stop (0) times for this call 
!--- instance. When both start and stop are 0, the call is considered permanent.
 
m=audio 16384 RTP/AVP 0 8  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination User Datagram Protocol (UDP) port 16384 for voice-bearer traffic, 
!--- and Real-Time Transport Protocol (RTP) encapsulation using
!--- audio video profile (AVP) with RTP payload type of 0 or 8.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2899  
I: 19 
v=0 
c=IN IP4 192.168.25.2 
m=audio 16386 RTP/AVP 0
解码
200 2899  

!--- This sent acknowledgement states that CRCX sequence 
!--- 2899 was executed normally. 

I: 19  

!--- The connection identification number is 19. 

v=0  

!--- The session description protocol (SDP) version is 0. 

c=IN IP4 192.168.25.2  

!--- The connection data (c) field specifies an Internet (IN) IP 
!--- version 4 address of 192.168.25.2. 

m=audio 16386 RTP/AVP 0  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination UDP port 16386 for voice-bearer traffic, and RTP 
!--- encapsulation using AVP with RTP payload type of 0.

MSG
1d00h: MGCP Packet received - 
RQNT 2901 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hd(N) 
S: L/rg
解码
RQNT 2901  

!--- This is the notification request message sent from the call agent to report 
!--- the observed event. The sequence number is 2901.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

R: L/hd(N)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an off-hook (hd) condition exists. 

S: L/rg  

!--- The call agent sends a signaling request (S) to have this gateway 
!--- use the generic (L) package and generate a ringing tone (rg).

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2901 OK
解码
200 2901 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2901 was executed normally.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 169 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: L/hd
解码
NTFY 169  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 169.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1 

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50  

!--- The request ID is 50. 

O: L/hd  

!--- Observed event (O) off-hook (hd) is detected with use of 
!--- line (L) package.

MSG
1d00h: MGCP Packet received - 
200 169 OK
解码
200 169 OK  

!--- This received acknowledgement states that NTFY sequence
!--- 169 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2903 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hu(N),L/hf(N)
解码
RQNT 2903  

!--- This is the notification request message sent from the call agent to report 
!--- the observed event. The sequence number is 2886.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50 

!--- The request ID (X) is 50. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) or hook flash (hf) condition exists.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2903 OK
解码
200 2903 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2903 was executed normally.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
NTFY 170 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1 
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
O: L/hu
解码
NTFY 170  

!--- The notify message is sent to the call agent to report the observed 
!--- event. The notify sequence number is 170.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 50 

!--- The request ID is 50. 

O: L/hu 

!--- This residential gateway sends an observed event (O) that the 
!--- user went on-hook or hung up (hu).

MSG
1d00h: MGCP Packet received - 
200 170 OK
解码
200 170 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 170 was executed normally.

MSG
1d00h: MGCP Packet received - 
RQNT 2906 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
N: mgcp.aSCT1CA.atl0.cisco.com:2427 
X: 50 
R: L/hd(N)
解码
RQNT 2906  

!--- The notification request message is sent from the call agent to 
!--- report the observed event. The sequence number is 2906.

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.aSCT1CA.atl0.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 50

!--- The request ID is 50. 

R: L/hd(N)  

!--- The call agent requests (R) to be notified (N) 
!--- immediately that an off-hook (hd) condition exists.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
200 2906 OK
解码
200 2906 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2906 was executed normally.

MSG
1d00h: MGCP Packet received - 
DLCX 2907 aaln/S1/SU0/1@c26001.atl0.cisco.com MGCP 0.1  
I: 19 
C: 65
解码
DLCX 2907   

!--- The delete connection (DLCX) message is received from the call agent.
!--- The sequence number is 2907. 

aaln/S1/SU0/1@c26001.atl0.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

I: 19  

!--- The connection identification number is 19. 

C: 65  

!--- The call identification number (C) is 65.
!--- Note: This is NOT the callerid.

MSG
1d00h: send_mgcp_msg, MGCP Packet sent ---> 
250 2907  
P: PS=334, OS=52843, PR=293, OR=46601, PL=0, JI=512, LA=3
解码
250 2907  

!--- This sent acknowledgement states that the connection was deleted.
!--- The DLCX sequence number is 2907. 

P: PS=334,  

!--- The connection parameters (P) provide call statistics.
!--- The packets sent (PS) is 334. 

OS=52843,  

!--- The octets sent (OS) is 52843. 

PR=293,  

!--- The packets received (PR) is 293. 

OR=46601,  

!--- The octets received (OR) is 46601. 

PL=0,  

!--- The packets lost (PL) is 0. 

JI=512,  

!--- The jitter (JI) is 512 milliseconds. 

LA=3  

!--- The latency (LA) is 3 milliseconds.

一个在三方之间的完整呼叫等待顺序

当呼叫等待发信号到一个网关终点由呼叫代理时, MSG字段在如下所示的两个表里是debug mgcp packets命令输出的捕获。第一个表显示终端aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com做电话对472-0002,在呼叫期间,在同一住宅网关终止,并且接收呼叫等待征兆。第二个表显示终端aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com,查找在另一住宅网关,发出启动呼叫等待征兆对aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com的呼叫。解码字段提供debug命令生成的MGCP消息的解释。

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 171 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
O: L/hd
解码
NTFY 171
  
!--- This is the notify message sent to the call agent to report the observed event.
!--- The notify sequence number is 171.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

O: L/hd  

!--- The observed event (O) off-hook (hd) is detected with use of 
!--- line (L) package.

MSG
MGCP Packet received - 
200 171 OK
解码
200 171 OK  

!--- The received acknowledgement states that NTFY sequence 
!--- 171 was executed normally.

MSG
MGCP Packet received - 
RQNT 23 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N),D/[0-9!--*T](D) 
S: L/dl
解码
RQNT 23  

!--- The notification request message is sent from the call agent to 
!--- report the observed event. The sequence number is 23.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.
 
MGCP 0.1   

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

R: L/hu(N),D/[0-9!--*T](D)  

!--- The call agent requests (R) to be notified (N) immediately 
!--- that an on-hook (hu) condition exits and evaluates the digits received 
!--- with use of the digit map ((D)) and the dual tone multifrequency (DTMF) (D/)
!--- package. 

S: L/dl  

!--- The call agent sends a signaling request (S) to have this 
!--- gateway use the line (L) package and play dial tone (dl)
!--- for 16 seconds to endpoint aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 23 OK
解码
200 2906 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 2906 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 172 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
O: D/4720002
解码
NTFY 172  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 172.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

O: D/4720002  

!--- The observed event (O) dialed digits (472-0002) is detected
!--- with use of the DTMF (D) package.

MSG
MGCP Packet received - 
200 172 OK
解码
200 172 OK 

!--- This received acknowledgement states that NTFY sequence 
!--- 172 was executed normally.

MSG
MGCP Packet received - 
RQNT 24 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N)
解码
RQNT 24  

!--- This is the notification request message sent from the call agent to 
!--- report the observed event. The sequence number is 24.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID. 

MGCP 0.1   

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) 
!--- immediately that an on-hook (hu) event occurs.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 24 OK
解码
200 24 OK  

!--- This sent acknowledgement states that RQNT sequence
!--- 24 was executed normally.

MSG
MGCP Packet received - 
CRCX 25 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
C: 2 
L: p:10-20, a:PCMU;PCMA;G726-32,  e:off,  s:off, t:a0 
M: recvonly
解码
CRCX 25  

!--- This is the create connection (CRCX) message received from the call agent.
!--- The sequence number is 25. 

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID. 
!--- Note: This is the calling party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 2  

!--- The call identification number (C) is 2.
!--- Note: This is NOT the callerid.
 
L: p:10-20  

!--- This local connection option (L) requests a packetization 
!--- period (p) of 10 or 20 milliseconds. 

a:PCMU;PCMA;G726-32,  

!--- The compression algorithm (a) options are: u-law pulse code modulation (PCM),  
!--- a-law PCM, or 32 kbps G.726. 

e:off,  s:off,  

!--- The call agent has set both echo cancellation (e) and 
!--- silence suppression (s), also known as voice activity detection (VAD),
!--- to disabled. 

t:a0  

!--- The IP header type of service (t) byte for this call is  
!--- hexadecimal a0, which indicates IP precedence of 5 and minimized delay. 

M: recvonly  

!--- The connection mode (M) is a one-way receive at this 
!--- point until the called party answers. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 25  
I: 1D 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4 13.200.2.6 
t=0 0 
m=audio 16386 RTP/AVP 0 8 
解码
200 25  

!--- This sent acknowledgement states that CRCX sequence 
!--- 25 was executed normally. 

I: 1D  

!--- The connection identification number is 1D.
!--- Note: This is for the calling leg.

v=0  

!--- The SDP version is 0. 

o=- 2 0 IN IP4 13.200.2.6  

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 source address of 13.200.2.6 
!--- is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0".
 
c=IN IP4 13.200.2.6  

!--- The connection data (c) field specifies an Internet (IN) IP  
!--- version 4 source address of 13.200.2.6. 

t=0 0  

!--- The (t) represents the start (0) and stop (0) times 
!--- for this call instance.
!--- When both start and stop are 0, the call is considered permanent. 

m=audio 16386 RTP/AVP 0 8  

!--- This SDP media description (m) specifies a media type of audio, 
!--- destination User Datagram Protocol (UDP) port 16386 for voice-bearer traffic, 
!--- and Real-Time Transport Protocol (RTP) encapsulation using
!--- audio video profile (AVP) with RTP payload type of 0 or 8.

MSG
MGCP Packet received - 
CRCX 26 aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
C: 2 
L: p:10-20, a:PCMU;PCMA,  e:off,  s:off, t:a0, nt:IN 
M: sendrecv 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4  13.200.2.6 
t=0 0 
m=audio 16386 RTP/AVP 0 8 
解码
CRCX 26  

!--- The create connection (CRCX) message is received from the call agent.
!--- The sequence number is 26. 

aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.
!--- Note: This is the called party. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 2 

!--- The call identification number (C) is 2.
!--- Note: This is NOT the callerid.
 
L: p:10-20  

!--- This local connection option (L) requests a packetization 
!--- period (p) of 10 or 20 milliseconds.
 
a:PCMU;PCMA,  

!--- The compression algorithm (a) options are: u-law PCM or a-law PCM.
 
e:off,  s:off,  

!--- The call agent has set both echo cancellation (e) and   
!--- silence suppression (s), also known as VAD, to disabled. 

t:a0  

!--- The IP header type of service (t) byte for this call 
!--- is hexadecimal a0, which indicates IP precedence 
!--- of 5 and minimized delay. 

M: sendrecv  

!--- The connection mode (M) is a two-way send and receive at  
!--- this point, which allows full conversation.  

v=0  


!--- The SDP version is 0. 

o=- 2 0 IN IP4 13.200.2.6  


!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- The Internet (IN) IP version 4 source address of 13.200.2.6 
!--- is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0". 

c=IN IP4 13.200.2.6  

!--- The connection data (c) field specifies an Internet (IN)  
!--- IP version 4 source address of 13.200.2.6. 

t=0 0  

!--- The (t) represents the start (0) and stop (0) times 
!--- for this call instance. When both start and stop are 0,
!--- the call is considered permanent. 

m=audio 16386 RTP/AVP 0 8  

!--- The SDP media description (m) specifies a media type 
!--- of audio, destination UDP port 16386 for voice-bearer
!--- traffic, and RTP encapsulation using AVP with 
!--- RTP payload type of 0 or 8. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 26  
I: 1E 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4 13.200.2.6 
t=0 0 
m=audio 16388 RTP/AVP 0 
解码
200 26  

!--- This sent acknowledgement states that CRCX sequence 
!--- 26 was executed normally. 

I: 1E  

!--- The connection identification number is 1E. 
!--- Note: This is for the called leg. 

v=0  

!--- The SDP version is 0.
 
o=- 2 0 IN IP4 13.200.2.6  

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 source address of 13.200.2.6 
!--- is also specified.
 
s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0".
 
c=IN IP4 13.200.2.6  

!--- The connection data (c) field specifies an Internet (IN) IP version  
!--- 4 source address of 13.200.2.6.
 
t=0 0  

!--- The (t) represents the start (0) and stop (0) times for 
!--- this call instance. When both start and stop are 0, 
!--- the call is considered permanent.

m=audio 16388 RTP/AVP 0 8 

!--- The SDP media description (m) specifies a media 
!--- type of audio, destination UDP port 16388 for 
!--- voice-bearer traffic, and RTP encapsulation using
!--- AVP with RTP payload type of 0 or 8.
 
MSG
MGCP Packet received - 
MDCX 27 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1D 
C: 2 
M: recvonly 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4  13.200.2.6 
t=0 0 
m=audio 16388 RTP/AVP 0 
解码
MDCX 27  

!--- This is the modify connection (MDCX) message received from the call agent.
!--- The sequence number is 27.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the called party. 

MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1D  

!--- The connection identification number is 1D.
!--- Note: This is for the calling leg. 

C: 2  

!--- The call identification number (C) is 2.
!--- Note: This is NOT the callerid.

M: recvonly  

!--- The connection mode (M) is a one-way receive at this point until 
!--- the called party answers. 

v=0  

!--- The SDP version is 0. 

o=- 2 0 IN IP4 13.200.2.6  

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 destination address of 13.200.2.6  
!--- is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0". 

c=IN IP4 13.200.2.6  

!--- The connection data (c) field specifies an Internet (IN) IP  
!--- version 4 destination address of 13.200.2.6. 

t=0 0  

!--- The (t) represents the start (0) and stop (0) times for 
!--- this call instance. When both start and stop are 0,
!--- the call is considered permanent.
 
m=audio 16388 RTP/AVP 0  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination UDP port 16388 for voice-bearer traffic, and 
!--- RTP encapsulation using AVP with RTP payload type of 0. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 27 OK
解码
200 27 OK  

!--- This sent acknowledgement states that MDCX sequence 
!--- 27 was executed normally.

MSG
MGCP Packet received - 
RQNT 28 aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 6 
R: L/hd(N) 
S: L/rg
解码
RQNT 28  

!--- This is the notification request message sent from 
!--- the call agent to report the observed event.
!--- The sequence number is 28.

aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID.

MGCP 0.1  

!--- The MGCP version is 0.1.

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 6  

!--- The request ID is 6. 

R: L/hd(N)  

!--- The call agent requests (R) to be notified (N)
!--- immediately that an off-hook (hd) condition exists. 

S: L/rg  

!--- The call agent sends a signaling request (S) to have this 
!--- gateway use the line (L) package and generate a ringing tone (rg). 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 28 OK
解码
200 28 OK 

!--- This sent acknowledgement states that RQNT sequence 
!--- 28 was executed normally.

MSG
MGCP Packet received - 
RQNT 29 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N) 
S: G/rt
解码
RQNT 29  

!--- This is the notification request message sent from the call agent to 
!--- report the observed event. The sequence number is 29.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

R: L/hu(N) 

!--- The call agent requests (R) to be notified (N) immediately  
!--- that an on-hook (hu) condition exists. 

S: G/rt  

!--- The call agent sends a signaling request (S) to have 
!--- this gateway use the generic (G) package and generate a 
!--- ring-back tone.
 
MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 29 OK
解码
200 29 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 29 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 173 aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 6 
O: L/hd
解码
NTFY 173  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 173.

aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 6  

!--- The request ID is 6. 

O: L/hd  

!--- The observed (O) event off-hook (hd) is detected with use of
!--- line (L) package.

MSG
MGCP Packet received - 
200 173 OK
解码
200 173 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 173 was executed normally.

MSG
MGCP Packet received - 
MDCX 31 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1D 
C: 2 
M: sendrecv
解码
MDCX 27 

!--- This is the modify connection (MDCX) message received from the call agent.
!--- The sequence number is 27.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the calling party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1D  

!--- The connection identification number is 1D.
!--- Note: This is for the calling leg. 

C: 2  

!--- The call identification number (C) is 2.
!--- Note: This is NOT the callerid.

M: sendrecv  

!--- The connection mode (M) is a two-way send and receive at this point, 
!--- which allows full conversation.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 31 OK
解码
200 31 OK  

!--- This sent acknowledgement states that MDCX sequence 
!--- 31 was executed normally.

MSG
MGCP Packet received - 
RQNT 32 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N),L/hf(N) 
S: 
解码
RQNT 32  

!--- This is the notification request message sent from the call agent to 
!--- report the observed event. The sequence number is 32.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID (X) is 5. 

R: L/hu(N),L/hf(N)

!--- The call agent requests (R) to be notified (N) immediately  
!--- that an on-hook (hu) or hook flash (hf) condition exists. 

S: 

!--- The call agent sends a signaling request (S) to have this 
!--- gateway signal nothing, thereby stopping the 
!--- playout of the ring-back tone (rt).

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 32 OK
解码
200 32 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 32 was executed normally.

MSG
MGCP Packet received - 
CRCX 36 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
C: 3 
L: p:10-20, a:PCMU;PCMA,  e:off,  s:off, t:a0, nt:IN 
M: inactive 
v=0 
o=- 3 0 IN IP4 13.200.2.7 
s=Cisco SDP 0 
c=IN IP4  13.200.2.7 
t=0 0 
m=audio 16388 RTP/AVP 0 8 
解码
CRCX 36  

!--- The create connection (CRCX) message is received from the call agent.
!--- The sequence number is 26.
!--- This is a new call coming from another endpoint. 

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the called party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 3  

!--- The call identification number (C) is 3.
!--- Note: This is NOT the callerid.


!--- This is a new incoming call. 

L: p:10-20  

!--- This local connection option (L) requests a packetization 
!--- period (p) of 10 or 20 milliseconds. 

a:PCMU;PCMA, 

!--- The compression algorithm (a) options are: u-law PCM or a-law PCM. 

e:off,  s:off,  

!--- The call agent has set both echo cancellation (e) and 
!--- silence suppression (s), also known as VAD, to disabled. 

t:a0 

!--- The IP header type of service (t) byte for this call is  
!--- hexadecimal a0, which indicates IP precedence of 5 and 
!--- minimized delay. 

M: inactive 

!--- The connection mode (M) is inactive, which tells the gateway to 
!--- neither send nor receive packets on this connection. 

v=0  

!--- The SDP version is 0. 

o=- 3 0 IN IP4 13.200.2.7 

!--- The origin (o) field indicates that no user ids are used via (-).
!--- The session ID is 3 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 destination address  
!--- of 13.200.2.7 is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0". 

c=IN IP4 13.200.2.7  

!--- The connection data (c) field specifies an Internet (IN) 
!--- IP version 4 destination address of 13.200.2.7. 

t=0 0 

!--- The (t) represents the start (0) and stop (0) times for this 
!--- call instance. When both start and stop are 0, the call 
!--- is considered permanent. 

m=audio 16388 RTP/AVP 0 8  

!--- The SDP media description (m) specifies a media type of audio,  
!--- destination UDP port 16388 for voice-bearer traffic,  
!--- and RTP encapsulation using AVP
!--- with RTP payload type of 0 or 8. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 36  
I: 1F 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4 13.200.2.6 
t=0 0 
m=audio 16390 RTP/AVP 0 
解码
200 36  

!--- This sent acknowledgement states that CRCX sequence 
!--- 36 was executed normally. 

I: 1F 

!--- The connection identification number is 1F.  
!--- Note: This is for the called leg of the second call. 

v=0 

!--- The SDP version is 0. 

o=- 2 0 IN IP4 13.200.2.6 

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 source address of 13.200.2.6 
!--- is also specified. 

s=Cisco SDP 0 

!--- The session name (s) is "Cisco SDP 0". 

c=IN IP4 13.200.2.6 

!--- The connection data (c) field specifies an Internet (IN)  
!--- IP version 4 source address of 13.200.2.6. 

t=0 0  

!--- The (t) represents the start (0) and stop (0) times for this 
!--- call instance. When both start and stop are 0, the 
!--- call is considered permanent. 

m=audio 16390 RTP/AVP 0 

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination UDP port 16390 for voice-bearer traffic, and RTP 
!--- encapsulation using AVP with RTP payload type of 0. 

MSG
MGCP Packet received - 
RQNT 38 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N),L/hf(N) 
S: L/wt
解码
RQNT 38  

!--- The notification request message is sent from the call agent 
!--- to report the observed event. The sequence number is 38.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID (X) is 5. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N)  
!--- immediately that an on-hook (hu) or hook flash (hf) 
!--- condition exists. 

S: L/wt 

!--- The call agent sends a signaling request (S) to have this 
!--- gateway use the line (L) package and play the call 
!--- waiting tone (wt).

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 38 OK
解码
200 38 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 38 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 174 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
O: L/hf
解码
NTFY 174  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 174.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 5 

!--- The request ID is 5. 

O: L/hf 

!--- The observed (O) event hook flash (hf) is detected with use of line (L)
!--- package.

MSG
MGCP Packet received - 
200 174 OK
解码
200 174 OK  

!--- The received acknowledgement states that NTFY sequence 
!--- 174 was executed normally.

MSG
MGCP Packet received - 
RQNT 40 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N),L/hf(N) 
S: 
解码
RQNT 40 

!--- This is the notification request message sent from the call agent
!--- to report the observed event. The sequence number is 40.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1 

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID (X) is 5. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N) 
!--- immediately that an on-hook (hu) or hook flash (hf) 
!--- condition exists. 

S: 

!--- The call agent sends a signaling request (S) to have this  
!--- gateway signal nothing, which stops the playout of 
!--- the call waiting tone (wt).

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 40 OK
解码
200 40 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 40 was executed normally.

MSG
MGCP Packet received - 
MDCX 41 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1D 
C: 2 
M: inactive
解码
MDCX 41  

!--- This is the modify connection (MDCX) message received
!--- from the call agent. The sequence number is 41.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the calling party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1D 

!--- The connection identification number is 1D.
!--- Note: This is for the calling leg of the first call. 

C: 2  

!--- The call identification number (C) is 2. 
!--- Note: This is NOT the callerid.

M: inactive  

!--- The connection mode (M) is inactive, which tells the gateway 
!--- to neither send nor receive packets on this connection.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 41 OK
解码
200 41 OK  

!--- This received acknowledgement states that MDCX sequence 
!--- 41 was executed normally.

MSG
MGCP Packet received - 
MDCX 42 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1F 
C: 3 
M: sendrecv
解码
MDCX 42  

!--- The modify connection (MDCX) message is received from the call agent.
!--- The sequence number is 42.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the second called party. 

MGCP 0.1  

!--- The MGCP version is 0.1.
. 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1F  

!--- The connection identification number is 1F.
!--- Note: This is for the called leg of the second call.
 
C: 3 

!--- The call identification number (C) is 3.
!--- Note: This is NOT the callerid.
 
M: sendrecv 

!--- The connection mode (M) is a two-way send and receive at this point, 
!--- which allows full conversation.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 42 OK
解码
200 42 OK  

!--- This received acknowledgement states that MDCX sequence 
!--- 42 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 175 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
O: L/hf
解码
NTFY 175  

!--- The notify message is sent to the call agent to report
!--- the observed event. The notify sequence number is 175.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 5  

!--- The request ID is 5. 

O: L/hf  

!--- The observed event (O) hook flash (hf) is detected with use of line (L)
!--- package.

MSG
MGCP Packet received - 
200 175 OK
解码
200 175 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 175 was executed normally.

MSG
MGCP Packet received - 
RQNT 45 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 5 
R: L/hu(N),L/hf(N) 
S: 
解码
RQNT 45  

!--- The notification request message is sent from the call agent to 
!--- report the observed event. The sequence number is 45.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID.
 
MGCP 0.1  

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number.
 
X: 5  

!--- The request ID (X) is 5. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N) immediately  
!--- that an on-hook (hu) or hook flash (hf) condition exists. 

S: 

!--- The call agent sends a signaling request (S) to have this 
!--- gateway signal nothing to the endpoint.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 45 OK
解码
200 45 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 45 was executed normally.

MSG
MGCP Packet received - 
MDCX 46 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1F 
C: 3 
M: inactive
解码
MDCX 46  

!--- The modify connection (MDCX) message is received from the call agent.
!--- The sequence number is 46.

aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the called party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1F  

!--- The connection identification number is 1F.
!--- Note: This is for the called leg of the second call.
 
C: 3 

!--- The call identification number (C) is 3.
!--- Note: This is NOT the callerid.
 
M: inactive  

!--- The connection mode (M) is inactive, which tells the gateway to neither
!--- send nor receive packets on this connection.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 46 OK
解码
200 46 OK  

!--- This received acknowledgement states that MDCX sequence 
!--- 46 was executed normally.

MSG
MGCP Packet received - 
MDCX 47 aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 1D 
C: 2 
M: sendrecv
解码
MDCX 47  

!--- The modify connection (MDCX) message is received from the call agent.
!--- The sequence number is 47.
 
aaln/S1/SU0/0@opt0-2611-1.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the first calling party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 1D 

!--- The connection identification number is 1D.
!--- Note: This is for the calling leg of the first call. 

C: 2  

!--- The call identification number (C) is 2.
!--- Note: This is NOT the callerid.

M: sendrecv 

!--- The connection mode (M) is a two-way send and receive at this 
!--- point, which allows full conversation.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 47 OK
解码
200 47 OK  

!--- The received acknowledgement states that MDCX sequence
!--- 47 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 86 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 8 
O: D/4720001
解码
NTFY 86  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 86.
 
aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 8 

!--- The request ID is 8. 

O: D/4720001 

!--- The observed event (O) dialed digits (472-0001) is detected with use of 
!--- the DTMF (D) package.

MSG
MGCP Packet received - 
200 86 OK
解码
200 86 OK  

!--- This received acknowledgement states that NTFY sequence 
!--- 86 was executed normally.

MSG
MGCP Packet received - 
RQNT 34 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 8 
R: L/hu(N)
解码
RQNT 34  

!--- This is the notification request message sent from the call agent
!--- to report the observed event. The sequence number is 34.
 
aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com  

!--- This is the MGCP endpoint ID. 

MGCP 0.1   

!--- The MGCP version is 0.1.
 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 8  

!--- The request ID is 8. 

R: L/hu(N)  

!--- The call agent requests (R) to be notified (N) immediately  
!--- that an on-hook (hu) event occurs.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 34 OK
解码
200 34 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 34 was executed normally.

MSG
MGCP Packet received - 
CRCX 35 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
C: 3 
L: p:10-20, a:PCMU;PCMA;G726-32,  e:off,  s:off, t:a0 
M: recvonly
解码
CRCX 35  

!--- The create connection (CRCX) message is received from the call agent.
!--- The sequence number is 35.

aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the calling party. 

MGCP 0.1 

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

C: 3 

!--- The call identification number (C) is 3. 
!--- Note: This is NOT the callerid.

L: p:10-20  
!
!--- This local connection option (L) requests a packetization 
!--- period (p) of 10 or 20 milliseconds. 

a:PCMU;PCMA;G726-32,  

!--- The compression algorithm (a) options are: u-law pulse code modulation (PCM), 
!--- a-law,PCM, or 32 kbps G.726. 

e:off,  s:off, 

!--- The call agent has set both echo cancellation (e) and silence 
!--- suppression (s), also known as VAD, to disabled. 

t:a0 

!--- The IP header type of service (t) byte for this call is  
!--- hexadecimal a0, which indicates IP precedence of 5 and 
!--- minimized delay. 

M: recvonly  

!--- The connection mode (M) is a one-way receive at this point, until 
!--- the called party answers.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 35  
I: 11 
v=0 
o=- 3 0 IN IP4 13.200.2.7 
s=Cisco SDP 0 
c=IN IP4 13.200.2.7 
t=0 0 
m=audio 16388 RTP/AVP 0 8 
解码
200 35  

!--- This sent acknowledgement states that CRCX sequence 
!--- 36 was executed normally. 

I: 11  

!--- The connection identification number is 11.  

v=0 

!--- The session description protocol (SDP) version is 0. 

o=- 3 0 IN IP4 13.200.2.7 

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 3 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 source address of 
!--- 13.200.2.7 is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0". 

c=IN IP4 13.200.2.7  

!--- The connection data (c) field specifies an Internet (IN)  
!--- IP version 4 source address of 13.200.2.7. 

t=0 0 

!--- The (t) represents the start (0) and stop (0) times for this 
!--- call instance. When both start and stop are 0, the call 
!--- is considered permanent. 

m=audio 16388 RTP/AVP 0 8 

!--- The SDP media description (m) specifies a media type of audio,  
!--- destination User Datagram Protocol (UDP) port 16388 for voice-bearer traffic,  
!--- and Real-Time Transport Protocol (RTP) encapsulation using 
!--- audio video profile (AVP) with RTP payload type of 0 or 8.
 
MSG
MGCP Packet received - 
MDCX 37 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 11 
C: 3 
M: recvonly 
v=0 
o=- 2 0 IN IP4 13.200.2.6 
s=Cisco SDP 0 
c=IN IP4  13.200.2.6 
t=0 0 
m=audio 16390 RTP/AVP 0 
解码
MDCX 37  

!--- This modify connection (MDCX) message is received from the call agent.
!--- The sequence number is 37.

aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com  

!--- This is the MGCP endpoint ID.  
!--- Note: This is the calling party. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

I: 11 

!--- The connection identification number is 11.  
!--- Note: This is for the calling leg. 

C: 3  

!--- The call identification number (C) is 3.
!--- Note: This is the calling party.
 
M: recvonly  

!--- The connection mode (M) is a one-way receive at this point,  
!--- until the called party answers.  

v=0  

!--- The SDP version is 0. 

o=- 2 0 IN IP4 13.200.2.6  

!--- The origin (o) field indicates that no user IDs are used via (-).
!--- The session ID is 2 and the version of this announcement is 0.
!--- An Internet (IN) IP version 4 destination address of 
!--- 13.200.2.6 is also specified. 

s=Cisco SDP 0  

!--- The session name (s) is "Cisco SDP 0".
 
c=IN IP4 13.200.2.6  

!--- The connection data (c) field specifies an Internet (IN) 
!--- IP version 4 destination address of 13.200.2.6. 

t=0 0 

!--- The (t) represents the start (0) and stop (0) times for 
!--- this call instance. When both start and stop are 0, 
!--- the call is considered permanent. 

m=audio 16390 RTP/AVP 0  

!--- The SDP media description (m) specifies a media type of audio, 
!--- destination UDP port 16390 for voice-bearer traffic, and  
!--- RTP encapsulation using AVP with RTP payload type of 0. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 37 OK
解码
200 37 OK  

!--- This received acknowledgement states that MDCX sequence 
!--- 37 was executed normally.

MSG
MGCP Packet received - 
RQNT 39 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 8 
R: L/hu(N) 
S: G/rt
解码
RQNT 39  

!--- This is the notification request message sent from the call agent
!--- to report the observed event. The sequence number is 39.

aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427

!--- This is the notified entity ID with destination port number.
 
X: 8  

!--- The request ID is 8. 

R: L/hu(N) 

!--- The call agent requests (R) to be notified (N) 
!--- immediately that an on-hook (hu) condition exists. 

S: G/rt  

!--- The call agent sends a signaling request (S) to have this 
!--- gateway use the generic (G) package and generate a ring-back tone.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 39 OK
解码
200 39 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 39 was executed normally.

MSG
MGCP Packet received - 
MDCX 43 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
I: 11 
C: 3 
M: sendrecv
解码
MDCX 43  

!--- This modify connection (MDCX) message is received from 
!--- the call agent. The sequence number is 43.

aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com  

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number.
 
I: 11  

!--- The connection identification number is 11.  

C: 3 

!--- The call identification number (C) is 3.
!--- Note: This is NOT the callerid.
 
M: sendrecv  

!--- The connection mode (M) is a two-way send and receive at this point,
!--- which allows full conversation. 

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 43 OK
解码
200 43 OK  

!--- This received acknowledgement states that MDCX sequence 
!--- 43 was executed normally.

MSG
MGCP Packet received - 
RQNT 44 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1  
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 8 
R: L/hu(N),L/hf(N) 
S: 
解码
RQNT 44  

!--- This is the notification request message sent from the call agent to 
!--- report the observed event. The sequence number is 44.

aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 

!--- This is the notified entity ID with destination port number. 

X: 8  

!--- This request ID (X) is 8. 

R: L/hu(N),L/hf(N) 

!--- The call agent requests (R) to be notified (N) immediately  
!--- that an on-hook (hu) or hook flash (hf) condition exists. 

S: 

!--- The call agent sends a signaling request (S) to have this 
!--- gateway signal nothing, which stops the playout of 
!--- the ring-back tone (rt).

MSG
send_mgcp_msg, MGCP Packet sent ---> 
200 44 OK
解码
200 44 OK  

!--- This sent acknowledgement states that RQNT sequence 
!--- 44 was executed normally.

MSG
send_mgcp_msg, MGCP Packet sent ---> 
NTFY 87 aaln/S1/SU0/1@opt0-2611-2.ss.cisco.com MGCP 0.1 
N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427 
X: 8 
O: L/hu
解码
NTFY 87  

!--- This is the notify message sent to the call agent to report
!--- the observed event. The notify sequence number is 87.

aaln/S1/SU0/1@opt0-2611-1.ss.cisco.com 

!--- This is the MGCP endpoint ID. 

MGCP 0.1  

!--- The MGCP version is 0.1. 

N: mgcp.ss-rtp-opt0CA.ss.cisco.com:2427  

!--- This is the notified entity ID with destination port number. 

X: 8  

!--- The request ID is 8. 

O: L/hd  

!--- The observed event (O) off-hook (hd) is detected with use of  
!--- line (L) package.

MSG
MGCP Packet received - 
200 87 OK
解码
200 87 OK  

!--- This received acknowledgement states that NTFY sequence
!--- 87 was executed normally.

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Document ID: 42104