We have CUCM 9.1(1)/Unity Connection 9.1(1) integrated with iLBC codec via SIP trunk from CUCM. Works fine internally.
User's 7965 rings but PSTN hears fast busy upon CFB/CFNA to voicemail. CCM traces show transcoder being invoked (we don't have one setup, I was wanting MGCP gateway to Unity Connection to be iLBC no xcoder by design)
Doesn’t appear that my IOS15-1/2811/MGCP/PVDM2-48 can do iLBC….or do I have something wrong with my mgcp config? Everything else works great but this SIP/iLBC setup.
dsp service dspfarm
codec complexity flex
controller t1 0/0/0
pri-group timeslots 1-4 service mgcp
isdn bind-l3 ccm-manager
mgcp codec ilbc
ccm-manager mgcp codec-all
debug mgcp packet at gateway I see G711
*May 24 21:50:34.933: MGCP Packet sent to 10.12.5.11:2427--->
200 526 OK
c=IN IP4 10.12.65.254 <<<Gateway IP
m=audio 16948 RTP/AVP 0 100 <<<<shows g711, and no iLBC capability
Did you find a solution? I'm getting same issue. CUCM is only negotiating G.729 or G.711 not iLBC
These two command are already applied on MGCP GW:
ccm-manager mgcp codec-all mgcp codec ilbc
Running version Version 15.1(4)M10 and CUCM 9.1.2.
Thanks in advance Regards
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