Table Of Contents
Support for Software Media Termination Point
Information About Support for Software Media Termination Point
How to Configure Support for Software Media Termination Point
Prerequisites
Restrictions
Configuring Support for Software Media Termination Point
Support for Software Media Termination Point
The Support for Software Media Termination Point (MTP) feature bridges the media streams between two connections allowing Cisco Unified Communications Manager (Cisco UCM) to relay calls that are routed through SIP or H.323 endpoints via Skinny Call Control Protocol (SCCP) commands. These commands allow Cisco UCM to establish an MTP for call signaling.
Information About Support for Software Media Termination Point
This feature extends the software MTP support to the Cisco Unified Border Element (Enterprise). Software MTP is an essential component of large-scale deployments of Cisco UCM. This feature enables new capabilities so that the Cisco UBE can function as an Enterprise Edge Cisco Session Border Controller for large-scale deployments that are moving to SIP trunking.
How to Configure Support for Software Media Termination Point
This section how to configure the Support for Software Media Termination Point feature.
Prerequisites
•
For the software MTP to function properly, codec and packetization must be configured the same way on both in call legs and out call legs.
Cisco Unified Border Element (Enterprise)
•Cisco IOS XE Release 2.6 or a later release must be installed and running on your Cisco ASR 1000 Series Router.
Restrictions
•RSVP Agent is not supported in software MTP.
•Hardware MTP for repacketization is not supported.
•Call Threshold is not supported for standalone software MTP.
•Per-call debugging is not supported.
Configuring Support for Software Media Termination Point
To enable and configure the Support for Software Media Termination Point feature, perform the following task.
SUMMARY STEPS
1. enable
2. configure terminal
3. sccp local interface-type interface-number [port port-number]
4. sccp ccm {ipv4-address | ipv6-address | dns} identifier identifier-number [port port-number] version version-number
5. sccp
6. sccp ccm group group-number
7. associate ccm identifier-number priority number
8. associate profile profile-identifier register device-name
9. dspfarm profile profile-identifier {conference | mtp | transcode} [security]
10. maximum sessions {hardware | software} number
11. associate application sccp
12. no shutdown
DETAILED STEPS
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Command or Action
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Purpose
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Step 1
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enable
Example:
Router> enable
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Enables privileged EXEC mode.
•Enter your password if prompted.
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Step 2
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configure terminal
Example:
Router# configure terminal
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Enters global configuration mode.
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Step 3
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sccp local interface-type interface-number
[port port-number]
Example:
Router(config)# sccp local gigabitethernet0/0/0
|
Selects the local interface that SCCP applications (transcoding and conferencing) use to register with Cisco UCM.
•interface type—Can be an interface address or a virtual-interface address such as Ethernet.
•interface number—Interface number that the SCCP application uses to register with Cisco UCM.
•(Optional) port port-number—Port number used by the selected interface. Range is 1025 to 65535. Default is 2000.
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Step 4
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sccp ccm {ipv4-address | ipv6-address | dns}
identifier identifier-number [port port-number]
version version-number
Example:
Router(config)# sccp ccm 10.1.1.1 identifier 1
version 7.0+
|
Adds a Cisco UCM server to the list of available servers and sets the following parameters:
•ipv4-address—IP version 4 address of the Cisco UCM server.
•ipv6-address—IP version 6 address of the Cisco UCM server.
•dns—DNS name.
•identifier—Specifies the number that identifies the Cisco UCM server. Range is 1 to 65535.
•port port-number(Optional)—Specifies the TCP port number. Range is 1025 to 65535. Default is 2000.
•version version-number—Cisco UCM version. Valid versions are 3.0, 3.1, 3.2, 3.3, 4.0, 4.1, 5.0.1, 6.0, and 7.0+. There is no default value.
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Step 5
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sccp
Example:
Router(config)# sccp
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Enables the Skinny Client Control Protocol (SCCP) and its related applications (transcoding and conferencing).
|
Step 6
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sccp ccm group group-number
Example:
Router(config)# sccp ccm group 10
|
Creates a Cisco UCM group and enters SCCP Cisco UCM configuration mode.
•group-number—Identifies the Cisco UCM group. Range is 1 to 50.
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Step 7
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associate ccm identifier-number priority number
Example:
Router(config-sccp-ccm)# associate ccm 10
priority 3
|
Associates a Cisco UCM with a Cisco UCM group and establishes its priority within the group:
•identifier-number—Identifies the Cisco UCM. Range is 1 to 65535. There is no default value.
•priority number—Priority of the Cisco UCM within the Cisco UCM group. Range is 1 to 4. There is no default value. The highest priority is 1.
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Step 8
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associate profile profile-identifier register
device-name
Example:
Router(config-sccp-ccm)# associate profile 1
register MTP0011
|
Associates a DSP farm profile with a Cisco UCM group:
•profile-identifier—Identifies the DSP farm profile. Range is 1 to 65535. There is no default value.
•register device-name—Device name in Cisco UCM. A maximum of 15 characters can be entered for the device name.
|
Step 9
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dspfarm profile profile-identifier {conference
| mtp | transcode} [security]
Example:
Router(config-sccp-ccm)# dspfarm profile 1 mtp
|
Enters DSP farm profile configuration mode and defines a profile for DSP farm services:
•profile-identifier—Number that uniquely identifies a profile. Range is 1 to 65535. There is no default.
•conference—Enables a profile for conferencing.
•mtp—Enables a profile for MTP.
•transcode—Enables a profile for transcoding.
•security (Optional)— Enables a profile for secure DSP farm services.
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Step 10
|
maximum sessions {hardware | software} number
Example:
Router(config-dspfarm-profile)# maximum
sessions software 10
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Specifies the maximum number of sessions that are supported by the profile.
•hardware—Number of sessions that MTP hardware resources can support.
•software—Number of sessions that MTP software resources can support.
•number—Number of sessions that are supported by the profile. Range is 0 to x. Default is 0. The x value is determined at run time depending on the number of resources available with the resource provider.
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Step 11
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associate application sccp
Example:
Router(config-dspfarm-profile)# associate
application sccp
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Associates SCCP to the DSP farm profile.
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Step 12
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no shutdown
Example:
Router(config-dspfarm-profile)# no shutdown
|
Changes the status of the interface to the UP state.
|
Examples
The following example shows a sample configuration for the Support for Software Media Termination Point feature:
sccp local GigabitEthernet0/0/1
sccp ccm 10.13.40.148 identifier 1 version 6.0
bind interface GigabitEthernet0/0/1
associate ccm 1 priority 1
associate profile 6 register RR_RLS6
maximum sessions software 100
associate application SCCP
media-inactivity-criteria all
Troubleshooting Tips
To verify and troubleshoot this feature, use the following show commands:
•To verify information about SCCP, use the show sccp command:
Gateway IP Address: 10.13.40.157, Port Number: 2000
User Masked Codec list: None
Call Manager: 10.13.40.148, Port Number: 2000
Priority: N/A, Version: 6.0, Identifier: 1
•To verify information about the DSPfarm profile, use the show dspfarm profile command:
Router# show dspfarm profile 6
Dspfarm Profile Configuration
Profile ID = 6, Service = MTP, Resource ID = 1
Profile Service Mode : Non Secure
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : NONE Status : NONE
Number of Resource Configured : 100
Number of Resource Available : 100
Hardware Configured Resources : 0
Hardware Available Resources : 0
Codec : g711ulaw, Maximum Packetization Period : 30
•To display statistics for the SCCP connections, use the show sccp connections command:
Router# show sccp connections
sess_id conn_id stype mode codec ripaddr rport sport
16808048 16789079 mtp sendrecv g711u 10.13.40.20 17510 7242
16808048 16789078 mtp sendrecv g711u 10.13.40.157 6900 18050
•To display information about RTP connections, use the show rtpspi call command:
RTP Service Provider info:
No. CallId dstCallId Mode LocalRTP RmtRTP LocalIP RemoteIP SRTP
22 19 Snd-Rcv 7242 17510 0x90D080F 0x90D0814 0
19 22 Snd-Rcv 18050 6900 0x90D080F 0x90D080F 0
•To display information about VoIP RTP connections, use the show voip rtp connections command:
Router# show voip rtp connections
VoIP RTP Port Usage Information
Max Ports Available: 30000, Ports Reserved: 100, Ports in Use: 102
Port range not configured, Min: 5500, Max: 65499
VoIP RTP active connections :
No. CallId dstCallId LocalRTP RmtRTP LocalIP RemoteIP
1 114 117 19822 24556 10.13.40.157 10.13.40.157
2 115 116 24556 19822 10.13.40.157 10.13.40.157
3 116 115 19176 52625 10.13.40.157 10.13.40.20
4 117 114 16526 52624 10.13.40.157 10.13.40.20
•Additional, more specific, show commands that can be used include the following:
–show sccp connection callid
–show sccp connection connid
–show sccp connection sessionid
–show rtpspi call callid
–show rtpspi stat callid
–show voip rtp connection callid
–show voip rtp connection type
•To isolate specific problems, use the debug sccp command:
–debug sccp [all | config | errors | events | keepalive | messages | packets | parser | tls]
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