Hardware Conferencing

To make use of DSP resources for a Conference Call, we will have to enable Conference Bridge at the gateway.

Configure the following at the gateway:

voice-card 0
dsp services dspfarm

sccp local Loopback0
sccp ccm identifier 2 priority 2 version 5.0.1
sccp ccm identifier 1 priority 1 version 5.0.1
sccp ccm group 1
bind interface Loopback0
associate ccm 1 priority 1
associate ccm 2 priority 2
associate profile 1 register HQ-conf  << Name must match at CUCM
dspfarm profile 1 conference
codec g729r8
maximum sessions 2
associate application SCCP
no shut  << Very Important

At CUCM under Media Resources  > Conference Bridge

Conference Bridge

After adding the Conference Bridge, add it under Media Resource Group and then to MRGL.

Add the MRGL under particular device pool or Gateway.


Show sccp conn

show dspfarm all


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