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How to configure Conferencing and Transcoding for Voice Gateways?

 

 

Introduction

 

This document covers the procedures for configuring conferencing and transcoding support on Cisco IOS voice gateways. The procedures that you perform depend on the type of voice network module you are using to allocate DSP resources.


Determining DSP Resource Requirements


DSPs reside either directly on a voice network module, such as the NM-HD-2VE, on PVDM2s that are installed in a voice network module, such as the NM-HDV2, or on PVDM2s that are installed directly onto the motherboard, such as on the Cisco 2800 and 3800 series voice gateway routers. You must determine the number of PVDM2s or network modules that are required to support your conferencing and transcoding services and install the modules on your router.

 

STEPS
1. Determine performance requirements.

2. Determine the number of DSPs that are required.

3. Determine the number of network modules that are supportable.

4. Verify your solution.

5. Install hardware.

 

DSP Calculator

 

In regards to calculating DSP`s, there is already a tool for that

http://www.cisco.com/web/applicat/dsprecal/dsp_calc.html


Enabling SCCP on the Cisco Unified Communications Manager Interface


Perform this task to enable SCCP on the local interface that the voice gateway uses to communicate with Cisco Unified Communications Manager.

 

Configuration

 

1. enable

2. configure terminal

3. sccp ccm {ip-address | dns} identifier identifier-number [port port-number] [version version-number]

or

sccp ccm {ip-address | dns} priority priority [port port-number] [version version-number]

4. sccp local interface-type interface-number

5. sccp ip precedence value

6. sccp

7. exit

 

Configuring Enhanced Conferencing and Transcoding


Perform the following procedures to configure enhanced conferencing and transcoding on the NM-HDV2, NM-HD-1V, NM-HD-2V, NM-HD-2VE, or PVDM2:

 

Configuring a DSP Farm Profile


Perform this procedure to define a DSP farm on the NM-HDV2, NM-HD-1V, NM-HD-2V, NM-HD-2VE, or PVDM2. You must configure each conferencing, transcoding, and MTP profile separately.

 

Prerequisites:
Requires Cisco IOS Release 12.3(8)T or a later release. Universal transcoding requires Cisco IOS Release 12.4(11)XY or a later release.

 

Configuration

 

1. enable

2. configure terminal

3. voice-card slot

4. dsp services dspfarm

5. exit

6. dspfarm profile profile-identifier {conference | mtp | transcode [universal]}

7. description text

8. codec codec-type

9. maximum sessions number

or

maximum sessions {hardware | software} number

10. associate application sccp

11. no shutdown

12. exit

13. gateway

14. timer receive-rtp seconds

15. exit


Associating a DSP Farm Profile to a Cisco Unified Communications Manager Group


Perform this procedure to define a Cisco Unified Communications Manager group and to associate a DSP farm profile with the Cisco Unified Communications Manager group.

 

Prerequisites:
This procedure requires Cisco IOS Release 12.3(8)T or later release.

 

Configuration

1. enable

2. configure terminal

3. sccp ccm group group-number

4. associate ccm identifier-number priority priority-number

5. associate profile profile-identifier register device-name

6. bind interface interface-type interface-number

7. description string

8. end


Verifying DSP Farm Configuration


To verify conferencing, transcoding, and MTP services, perform the following steps.

 

1. show running-config

2. show sccp ccm group [group-number]

3. show dspfarm profile [profile-number]

4. show dspfarm all

5. show sccp

6. show sccp connections

7. show media resource status

 

Related Information

Version history
Revision #:
2 of 2
Last update:
‎08-29-2017 12:02 PM
 
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