Asynchronous Connections

Document ID: 9566

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Basics of Modem Pooling and CAS Configuration
      Network Diagram
      Configurations
Verify
      Debugs and Analyses: Sample Configuration with Two Modem Pools
      Debug Analysis: Sample Configuration with One Modem Pool
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Related Information

Introduction

This document describes how to configure Digital Number Identification Service (DNIS) support for a channelized T1 line to enable modem pooling. Two sample configurations are included:

• Multiple modem pools

• One modem pool with one modem

Prerequisites

Requirements

Before you attempt this configuration, ensure that you meet these requirements:

• Cisco IOS® Software Release 11.2(10)P or 11.3(1.1)T or later

• Channelized T1 that supports the e&m wink-start signaling (e&m-fgb) command

• Modem ISDN channel aggregation (MICA) modems with portware 2.0.1.7 or later

Note: Channel associated signaling (CAS)-DNIS is not supported for Microcom.

If you use Remote Dial-In User Service (RADIUS) as your authentication protocol, you need to know RADIUS (IETF) Accounting Attribute 30 (Station-ID).

Station-ID allows the Network Access Server (NAS) to send the number the user called as part of the Access-Request packet (with DNIS or similar technology). Station-ID is supported only on ISDN and modem calls on the Cisco AS5x00 when used with Primary Rate Interface (PRI).

Components Used

This document is not restricted to specific software and hardware versions.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Basics of Modem Pooling and CAS Configuration

In order to configure E&M Feature Group-B (FGB) signaling to support modem pooling and DNIS over channelized T1 lines, you must specify the multifrequency (MF) or dual tone multifrequency (DTMF) tone type.

router(config-controller)# cas-group 1 timeslots 1-24 e&m-fgb dtmf dnis

If you configure DNIS as part of the cas-group command, the system collects DNIS digits for incoming calls. These digits are redirected to specific modem pools. You must use MICA modems and have at least ten percent of them in the default modem pool. Free modems are needed in the default pool to detect the incoming called number or DNIS before the call is directed to the appropriate modem pool. Therefore, a second modem is needed to handle each incoming call.

Note: Make sure your switch provides inband address information for incoming analog calls before you enable this feature.

Tip: When the current called number is shorter than the previous called number, the Cisco access server receives incorrect DNIS for CAS/R2. This incorrect information can affect modem pooling and can occur as users call from within the local area, from another state, or from another country. If the number is not an 800 number, it is possible that the length of the dialed number is not constant. The access server remembers the longest dialed number on that modem.

Because Loop Start and Ground Start trunks require DTMF signaling, they do not receive DNIS or automatic number identification (ANI) address information sent by the telephone company central office on dial-in calls. In order to correct this, additional parameters must be set for the modem.

Network Diagram

This document uses this network setup:

Configurations

Sample Configuration with Two Modem Pools

This configuration includes two configured modem pools: PPP has 24 modems allocated and DEC has 20 modems allocated. The remaining four modems are automatically assigned to the default modem pool. The modems in the default modem pool answer the initial call and then direct the call to the proper modem-pool for modem allocation.

Four modems in the default pool can cause a problem. The problem is that when five or more users attempt to dial in simultaneously, only four can connect and the remaining user hears a busy signal. These are a few workarounds:

• If you use a PRI instead of CAS, DNIS information is decoded by the Cisco IOS.

• When you use a CAS service, buy more modems than needed. The number of additional modems depend on the model of the Cisco access server.

• When you use a CAS service, allocate enough modems to the default pool so that most users can connect most of the time.

eval#write terminal 
Current configuration: 
! 
version 11.2 
service timestamps debug datetime msec 
no service password-encryption 
no service udp-small-servers 
no service tcp-small-servers 
! 
hostname eval 
! 
enable secret x xxxxxxx 
enable password xxxxxx 
! 
username xxx password 0 xxxxxxxx 
username xxx password 0 xxxxxxxx 
! 
modem-pool ppp 
 pool-range 1-24 
 called-number 5551345 max-conn 24 
modem-pool DEC 
 pool-range 25-44 
 called-number 5551370 max-conn 20 
! 
controller T1 0 
 clock source line primary 
 cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnis 
! 
controller T1 1 
 clock source line secondary 
 cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnis 
! 
controller T1 2 
 shutdown 
 clock source internal 
! 
controller T1 3 
 shutdown 
 clock source internal 
! 
interface Ethernet0 
 ip address x.x.x.x 255.255.255.0 
 no mop enabled 
! 
interface FastEthernet0 
 ip address x.x.x.x 255.255.255.0 
 no mop enabled 
! 
interface Group-Async1 
 ip unnumbered Ethernet0 
 ip tcp header-compression passive 
 encapsulation ppp 
 async mode dedicated 
 peer default ip address pool setup_pool 
 no cdp enable 
 ppp authentication chap pap 
 group-range 1 24 
! 
interface Group-Async2 
 no ip address 
 async mode interactive 
 group-range 25 48 
! 
ip local pool setup_pool x.x.x.x x.x.x.x 
no ip classless 
access-list 101 permit ip any any 
! 
snmp-server community public RO 
dialer-list 1 protocol ip list 101 
! 
line con 0 
line 1 24 
 autoselect during-login 
 autoselect ppp 
 login local 
 modem Dialin 
line 25 48 
 modem Dialin 
 autocommand telnet 10.1.1.1 
line aux 0 
line vty 0 4 
 password xxxxxx 
 login 
! 
scheduler interval 1000 
end 

eval#

Configuration with One Modem Pool

In this example, only one modem pool is configured with one modem:

modem-pool part1 
      pool-range 1 
      called-number 4085551345 max-conn 1 
     ! 
     controller T1 0 
      framing esf 
      clock source line primary 
      cas-group 0 timeslots 1-24 type e&m-fgb dtmf dnis

Verify

This section provides information you can use to confirm your configuration is working properly.

Certain show commands are supported by the Output Interpreter Tool ( registered customers only) , which allows you to view an analysis of show command output.

Debugs and Analyses: Sample Configuration with Two Modem Pools

Debug analyses are included for a PPP and for EXEC sessions.

eval#show version
Cisco Internetwork Operating System Software 
IOS (tm) 5300 Software (C5300-JS-M), Version 11.2(11)P1, RELEASE SOFTWARE
(fc1) 
Copyright (c) 1986-1998 by cisco Systems, Inc. 
Compiled Wed 21-Jan-98 00:22 by dschwart 
Image text-base: 0x600088F0, data-base: 0x607A6000 
 
ROM: System Bootstrap, Version 11.2(9)XA, RELEASE SOFTWARE (fc2) 
BOOTFLASH: 5300 Software (C5300-BOOT-M), Version 11.2(9)XA1, RELEASE SOFTWARE (fc1) 
 
eval uptime is 3 hours, 42 minutes 
System restarted by reload 
System image file is "flash:c5300-js-mz.112-11.P1", booted via flash 
 
cisco AS5300 (R4K) processor (revision A.22) with 65536K/16384K bytes of memory. 

Processor board ID 07801222 
R4700 processor, Implementation 33, Revision 1.0 (512KB Level 2 Cache) 
Bridging software. 
SuperLAT software copyright 1990 by Meridian Technology Corp). 
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. 
TN3270 Emulation software. 
Primary Rate ISDN software, Version 1.0. 
Backplane revision 2 
Manufacture Cookie Info: 
 EEPROM Type 0x0001, EEPROM Version 0x01, Board ID 0x30, 
 Board Hardware Version 1.16, Item Number 73-2414-3, 
 Board Revision C0, Serial Number 07801222, 
 PLD/ISP Version 255.255, Manufacture Date 17-Mar-1998. 
1 Ethernet/IEEE 802.3 interface(s) 
1 FastEthernet/IEEE 802.3 interface(s) 
48 terminal line(s) 
4 Channelized T1/PRI port(s) 
128K bytes of non-volatile configuration memory. 
16384K bytes of processor board System flash (Read/Write) 
4096K bytes of processor board Boot flash (Read/Write) 
 
Configuration register is 0x2142

show modem-pool Before Modem Dialin

eval# 
eval#show modem-pool 
modem-pool: System-def-Mpool 
modems in pool: 4 active conn: 0 
 20 no free modems in pool 
 
modem-pool: ppp 
modems in pool: 24 active conn: 0 
 0 no free modems in pool 
 called_party_number: 5551345 
 max conn allowed: 24, active conn: 0 
 0 max-conn exceeded, 0 no free modems in pool 
 
modem-pool: DEC 
modems in pool: 20 active conn: 0 
 0 no free modems in pool 
 called_party_number: 5551370 
 max conn allowed: 20, active conn: 0 
 0 max-conn exceeded, 0 no free modems in pool  
eval# 

Win95 PPP Dialin to Modem-Pool PPP

eval#show debug 
General OS: 
 Modem control/process activation debugging is on 
PPP: 
 PPP protocol negotiation debugging is on 
Modem Management: 
 Modem Management Call Switching Module debugging is on 
eval# 

eval# 

*Oct 17 09:51:26.099: VDEV_ALLOCATE: slot 1 and port 46 is allocated. 
 
*Oct 17 09:51:26.099: CSM_RX_CAS_EVENT_FROM_NEAT:(0062): 
EVENT_CALL_DIAL_IN at slot 1 and port 46 
 
*Oct 17 09:51:26.099: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 1, port 46 
 
*Oct 17 09:51:26.099: Mica Modem(1/46): Configure(0x0) 
*Oct 17 09:51:26.099: Mica Modem(1/46): Configure(0x2) 
*Oct 17 09:51:26.099: Mica Modem(1/46): Call Setup 
*Oct 17 09:51:26.239: Mica Modem(1/46): State Transition to Call Setup 
*Oct 17 09:51:26.239: Mica Modem(1/46): Went offhook 
*Oct 17 09:51:26.239: CSM_PROC_IC1_RING: 
CSM_EVENT_MODEM_OFFHOOK at slot 1, port 46 
 
*Oct 17 09:51:28.695: Mica Modem(1/46): Rcvd Digit detected(5) 
*Oct 17 09:51:28.875: Mica Modem(1/46): Rcvd Digit detected(5) 
*Oct 17 09:51:29.055: Mica Modem(1/46): Rcvd Digit detected(5) 
*Oct 17 09:51:29.231: Mica Modem(1/46): Rcvd Digit detected(1) 
*Oct 17 09:51:29.411: Mica Modem(1/46): Rcvd Digit detected(3) 
*Oct 17 09:51:29.591: Mica Modem(1/46): Rcvd Digit detected(4) 
*Oct 17 09:51:29.771: Mica Modem(1/46): Rcvd Digit detected(5) 
*Oct 17 09:51:30.771: CSM_PROC_IC2_COLLECT_ADDR_INFO: 
CSM_EVENT_ADDR_INFO_COLLECTED (dnis = 5551345) at slot 1, port 46 
 
*Oct 17 09:51:30.771: VDEV_ALLOCATE: slot 1 and port 2 is allocated. 
 
*Oct 17 09:51:30.771: Mica Modem(1/2): Configure(0x0) 
*Oct 17 09:51:30.771: Mica Modem(1/2): Configure(0x2) 
*Oct 17 09:51:30.771: Mica Modem(1/2): Call Setup 
*Oct 17 09:51:30.771: Mica Modem(1/46): Soft Reset 
*Oct 17 09:51:30.855: Mica Modem(1/46): State Transition to Terminating 
*Oct 17 09:51:30.911: Mica Modem(1/2): State Transition to Call Setup 
*Oct 17 09:51:30.911: Mica Modem(1/2): Went offhook 
*Oct 17 09:51:30.911: CSM_IC3_WAIT_FOR_SWITCH_OVER: 
CSM_EVENT_MODEM_OFFHOOK at slot 1, port 2 
 
*Oct 17 09:51:30.915: Mica Modem(1/46): State Transition to Idle 
*Oct 17 09:51:30.915: Mica Modem(1/46): Went onhook 
*Oct 17 09:51:30.915: CSM_PROC_IC6_OC8_DISCONNECTING: 
CSM_EVENT_MODEM_ONHOOK at slot 1, port 46 
 
*Oct 17 09:51:30.915: VDEV_DEALLOCATE: slot 1 and port 46 is deallocated 
 
*Oct 17 09:51:31.803: CSM_RX_CAS_EVENT_FROM_NEAT:(0062): 
EVENT_CHANNEL_CONNECTED at slot 1 and port 2 
 
*Oct 17 09:51:31.803: CSM_PROC_IC4_WAIT_FOR_CARRIER: 
CSM_EVENT_DSX0_CONNECTED at slot 1, port 2 
 
*Oct 17 09:51:31.803: Mica Modem(1/2): Link Initiate 
*Oct 17 09:51:31.927: Mica Modem(1/2): State Transition to Connect 
*Oct 17 09:51:36.955: Mica Modem(1/2): State Transition to Link 
*Oct 17 09:51:49.171: Mica Modem(1/2): State Transition to Trainup 
*Oct 17 09:51:52.467: Mica Modem(1/2): State Transition to EC Negotiating 
*Oct 17 09:51:53.007: Mica Modem(1/2): State Transition to Steady State 
*Oct 17 09:51:53.999: TTY3: DSR came up 
*Oct 17 09:51:53.999: tty3: Modem: IDLE->READY 
%LINK-3-UPDOWN: Interface Async3, changed state to up

show modem-pool After Connect (Modem-Pool PPP)

eval#show modem-pool 
modem-pool: System-def-Mpool 
modems in pool: 4 active conn: 0 
 20 no free modems in pool 
 
modem-pool: ppp 
modems in pool: 24 active conn: 1 
 0 no free modems in pool 
 called_party_number: 6561345 
 max conn allowed: 24, active conn: 1 
 0 max-conn exceeded, 0 no free modems in pool 
 
modem-pool: DEC 
modems in pool: 20 active conn: 0 
 0 no free modems in pool 
 called_party_number: 6561370 
 max conn allowed: 20, active conn: 0 
 0 max-conn exceeded, 0 no free modems in pool 
 
eval#

Exec Dialin to Modem-Pool 'DEC'

eval# 
*Oct 17 09:52:32.263: VDEV_ALLOCATE: slot 1 and port 47 is allocated. 
 
*Oct 17 09:52:32.263: CSM_RX_CAS_EVENT_FROM_NEAT:(0063): 
EVENT_CALL_DIAL_IN at slot 1 and port 47 
 
*Oct 17 09:52:32.263: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 1, port 47 
 
*Oct 17 09:52:32.263: Mica Modem(1/47): Configure(0x0) 
*Oct 17 09:52:32.263: Mica Modem(1/47): Configure(0x2) 
*Oct 17 09:52:32.263: Mica Modem(1/47): Call Setup 
*Oct 17 09:52:32.407: Mica Modem(1/47): State Transition to Call Setup 
*Oct 17 09:52:32.407: Mica Modem(1/47): Went offhook 
*Oct 17 09:52:32.407: CSM_PROC_IC1_RING: CSM_EVENT_MODEM_OFFHOOK at slot 1, port 47 
 
*Oct 17 09:52:34.923: Mica Modem(1/47): Rcvd Digit detected(5) 
*Oct 17 09:52:35.043: Mica Modem(1/47): Rcvd Digit detected(5) 
*Oct 17 09:52:35.219: Mica Modem(1/47): Rcvd Digit detected(5) 
*Oct 17 09:52:35.399: Mica Modem(1/47): Rcvd Digit detected(1) 
*Oct 17 09:52:35.579: Mica Modem(1/47): Rcvd Digit detected(3) 
*Oct 17 09:52:35.759: Mica Modem(1/47): Rcvd Digit detected(7) 
*Oct 17 09:52:35.939: Mica Modem(1/47): Rcvd Digit detected(0) 
*Oct 17 09:52:36.939: CSM_PROC_IC2_COLLECT_ADDR_INFO: 
CSM_EVENT_ADDR_INFO_COLLECTED (dnis = 5551370) at slot 1, port 47 
 
*Oct 17 09:52:36.939: VDEV_ALLOCATE: slot 1 and port 31 is allocated. 
 
*Oct 17 09:52:36.939: Mica Modem(1/31): Configure(0x0) 
*Oct 17 09:52:36.939: Mica Modem(1/31): Configure(0x2) 
*Oct 17 09:52:36.939: Mica Modem(1/31): Call Setup 
*Oct 17 09:52:36.939: Mica Modem(1/47): Soft Reset 
*Oct 17 09:52:37.019: Mica Modem(1/47): State Transition to Terminating 
*Oct 17 09:52:37.075: Mica Modem(1/31): State Transition to Call Setup 
*Oct 17 09:52:37.075: Mica Modem(1/31): Went offhook 
*Oct 17 09:52:37.075: CSM_IC3_WAIT_FOR_SWITCH_OVER: 
CSM_EVENT_MODEM_OFFHOOK at slot 1, port 31 
 
*Oct 17 09:52:37.079: Mica Modem(1/47): State Transition to Idle 
*Oct 17 09:52:37.079: Mica Modem(1/47): Went onhook 
*Oct 17 09:52:37.079: CSM_PROC_IC6_OC8_DISCONNECTING: 
CSM_EVENT_MODEM_ONHOOK at slot 1, port 47 
 
*Oct 17 09:52:37.079: VDEV_DEALLOCATE: slot 1 and port 47 is deallocated 
 
*Oct 17 09:52:37.967: CSM_RX_CAS_EVENT_FROM_NEAT:(0063): 
EVENT_CHANNEL_CONNECTED at slot 1 and port 31 
 
*Oct 17 09:52:37.967: CSM_PROC_IC4_WAIT_FOR_CARRIER: 
CSM_EVENT_DSX0_CONNECTED at slot 1, port 31 
 
*Oct 17 09:52:37.967: Mica Modem(1/31): Link Initiate 
*Oct 17 09:52:38.095: Mica Modem(1/31): State Transition to Connect 
*Oct 17 09:52:42.467: Mica Modem(1/31): State Transition to Link 
*Oct 17 09:52:51.447: Mica Modem(1/31): State Transition to Trainup 
*Oct 17 09:52:53.603: Mica Modem(1/31): State Transition to EC Negotiating 
*Oct 17 09:52:54.679: Mica Modem(1/31): State Transition to Steady State 
*Oct 17 09:52:55.079: TTY32: DSR came up 
*Oct 17 09:52:55.079: tty32: Modem: IDLE->READY 
*Oct 17 09:52:55.079: TTY32: EXEC creation 
eval#

show modem-pool After Exec Dialin

eval#show modem-pool 
modem-pool: System-def-Mpool 
modems in pool: 4 active conn: 0 
 20 no free modems in pool 
 
modem-pool: ppp 
modems in pool: 24 active conn: 1 
 0 no free modems in pool 
 called_party_number: 6561345 
 max conn allowed: 24, active conn: 1 
 0 max-conn exceeded, 0 no free modems in pool 
 
modem-pool: DEC 
modems in pool: 20 active conn: 1 
 0 no free modems in pool 
 called_party_number: 6561370 
 max conn allowed: 20, active conn: 1 
 0 max-conn exceeded, 0 no free modems in pool

Debug Analysis: Sample Configuration with One Modem Pool

As you see in the debugs, the first connection is to modem 1/7. Then the router gets the DNIS info and routes the call to specifed modem 1/0 as configured.

Apr 2 20:58:05.588: VDEV_ALLOCATE: slot 1 and port 7 is allocated. 
 
Apr 2 20:58:05.588: CSM_RX_CAS_EVENT_FROM_NEAT:(0007): 
EVENT_CALL_DIAL_IN at slot 1 and port 7 
 
Apr 2 20:58:05.588: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 1, port 7 
 
Apr 2 20:58:05.588: Mica Modem(1/7): Configure(0x0) 
Apr 2 20:58:05.588: Mica Modem(1/7): Configure(0x2) 
Apr 2 20:58:05.588: Mica Modem(1/7): Call Setup 
Apr 2 20:58:05.740: Mica Modem(1/7): State Transition to Call Setup 
Apr 2 20:58:05.740: Mica Modem(1/7): Went offhook 
Apr 2 20:58:05.744: CSM_PROC_IC1_RING: CSM_EVENT_MODEM_OFFHOOK at slot 1, port 7 
 
Apr 2 20:58:09.744: CSM_PROC_IC2_COLLECT_ADDR_INFO: CSM_EVENT_ADDR_INFO_COLLECTED
(dnis = ) at slot 1, port 7 
 
Apr 2 20:58:09.744: VDEV_ALLOCATE: slot 1 and port 0 is allocated. 
 
Apr 2 20:58:09.744: Mica Modem(1/0): Configure(0x0) 
Apr 2 20:58:09.744: Mica Modem(1/0): Configure(0x2) 
Apr 2 20:58:09.744: Mica Modem(1/0): Call Setup 
Apr 2 20:58:09.744: Mica Modem(1/7): Soft Reset 
Apr 2 20:58:09.812: Mica Modem(1/7): State Transition to Terminating 
Apr 2 20:58:09.872: Mica Modem(1/0): State Transition to Call Setup 
Apr 2 20:58:09.872: Mica Modem(1/0): Went offhook 
Apr 2 20:58:09.872: CSM_IC3_WAIT_FOR_SWITCH_OVER: 
CSM_EVENT_MODEM_OFFHOOK at slot 1, port 0 
 
Apr 2 20:58:09.872: Mica Modem(1/7): State Transition to Idle 
Apr 2 20:58:09.872: Mica Modem(1/7): Went onhook 
Apr 2 20:58:09.872: CSM_PROC_IC6_OC8_DISCONNECTING: 
CSM_EVENT_MODEM_ONHOOK at slot 1, port 7 
 
Apr 2 20:58:09.872: VDEV_DEALLOCATE: slot 1 and port 7 is deallocated 
 
Apr 2 20:58:09.988: CSM_RX_CAS_EVENT_FROM_NEAT:(0007): 
EVENT_CHANNEL_CONNECTED at slot 1 and port 0 
 
Apr 2 20:58:09.988: CSM_PROC_IC4_WAIT_FOR_CARRIER: 
CSM_EVENT_DSX0_CONNECTED at slot 1, port 0 
 
Apr 2 20:58:09.988: Mica Modem(1/0): Link Initiate 
Apr 2 20:58:10.112: Mica Modem(1/0): State Transition to Connect 
Apr 2 20:58:14.488: Mica Modem(1/0): State Transition to Link 
Apr 2 20:58:23.116: Mica Modem(1/0): State Transition to Trainup 
Apr 2 20:58:25.272: Mica Modem(1/0): State Transition to EC Negotiating
Apr 2 20:58:26.228: Mica Modem(1/0): State Transition to Steady State 
Apr 2 20:58:33.480: Mica Modem(1/6): State Transition to Terminating 
Apr 2 20:58:35.152: %LINK-5-CHANGED: Interface Async7, changed state to reset 
Apr 2 20:58:35.216: Mica Modem(1/6): State Transition to Idle 
Apr 2 20:58:35.216: Mica Modem(1/6): Went onhook 
Apr 2 20:58:35.216: CSM_PROC_IC5_OC6_CONNECTED: 
CSM_EVENT_MODEM_ONHOOK at slot 1, port 6 
 
Apr 2 20:58:35.216: VDEV_DEALLOCATE: slot 1 and port 6 is deallocated 
 
Apr 2 20:58:35.240: %DSX0-5-RBSLINEDBUSYOUT: 
RBS of controller 0 timeslot 5 is dynamic busyout 
Apr 2 20:58:36.124: %LINEPROTO-5-UPDOWN: 
Line protocol on Interface Async7, changed state to down 
Apr 2 20:58:36.896: Mica Modem(1/0): 
State Transition to Steady State Speedshifting 
Apr 2 20:58:37.372: Mica Modem(1/0): 
State Transition to Steady State 
Apr 2 20:58:38.488: %DSX0-5-RBSLINEUNBUSYOUT: 
RBS of controller 0 timeslot 5 is unbusyout 
Apr 2 20:58:41.128: %LINK-3-UPDOWN: 
Interface Async7, changed state to down 

Debug When Another Number is Called

Apr 2 21:00:05.234: Mica Modem(1/0): State Transition to Terminating 
Apr 2 21:00:05.650: Mica Modem(1/0): State Transition to Idle 
Apr 2 21:00:05.650: Mica Modem(1/0): Went onhook 
Apr 2 21:00:05.650: CSM_PROC_IC5_OC6_CONNECTED: 
CSM_EVENT_MODEM_ONHOOK at slot 1, port 0 
 
Apr 2 21:00:05.650: VDEV_DEALLOCATE: slot 1 and port 0 is deallocated 
 
Apr 2 21:00:08.026: %DSX0-5-RBSLINEDBUSYOUT: 
RBS of controller 0 timeslot 24 is dynamic busyout 
Apr 2 21:00:08.490: %DSX0-5-RBSLINEUNBUSYOUT: 
RBS of controller 0 timeslot 24 is unbusyout 
Apr 2 21:00:17.010: VDEV_ALLOCATE: slot 1 and port 8 is allocated. 
 
Apr 2 21:00:17.010: CSM_RX_CAS_EVENT_FROM_NEAT:(0008): 
EVENT_CALL_DIAL_IN at slot 1 and port 8 
 
Apr 2 21:00:17.010: CSM_PROC_IDLE: CSM_EVENT_DSX0_CALL at slot 1, port 8 
 
Apr 2 21:00:17.010: Mica Modem(1/8): Configure(0x0) 
Apr 2 21:00:17.010: Mica Modem(1/8): Configure(0x2) 
Apr 2 21:00:17.010: Mica Modem(1/8): Call Setup 
Apr 2 21:00:17.154: Mica Modem(1/8): State Transition to Call Setup 
Apr 2 21:00:17.154: Mica Modem(1/8): Went offhook 
Apr 2 21:00:17.154: CSM_PROC_IC1_RING: CSM_EVENT_MODEM_OFFHOOK at slot 1, port 8 
 
Apr 2 21:00:18.802: CSM_RX_CAS_EVENT_FROM_NEAT:(0008): 
EVENT_CHANNEL_CONNECTED at slot 1 and port 8 
 
Apr 2 21:00:18.802: CSM_PROC_IC4_WAIT_FOR_CARRIER: 
CSM_EVENT_DSX0_CONNECTED at slot 1, port 8 
 
Apr 2 21:00:18.802: Mica Modem(1/8): Link Initiate 
Apr 2 21:00:18.890: Mica Modem(1/8): State Transition to Connect 
Apr 2 21:00:23.323: Mica Modem(1/8): State Transition to Link 
Apr 2 21:00:32.363: Mica Modem(1/8): State Transition to Trainup 
Apr 2 21:00:34.523: Mica Modem(1/8): State Transition to EC Negotiating 
Apr 2 21:00:35.543: Mica Modem(1/8): State Transition to Steady State 
Apr 2 21:00:46.079: Mica Modem(1/8): State Transition to Steady State Speedshifting 
Apr 2 21:00:46.679: Mica Modem(1/8): State Transition to Steady State

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