11-07-2013 05:39 AM - edited 03-16-2019 08:16 PM
Hello all!
I have a strange situation.
I have CUCM and two 2911s.
First 2911 has transcoder and mtp on it. I added both of them onto my CUCM. both of them are "registered".
Second 2911 has CME on it.
CUCM and CME (2nd 2911) have SIP trunk between them.
and I try to use mtp (or transcode).
on CUCM I limit the bandwith by the region - up to 729.
on CME (2nd 2911) I insert g711ulaw as codec in incoming dial-peer
on 1st 2911 I have:
sccp local GigabitEthernet0/0
sccp ccm AAA.BBB.CCC.DDD identifier 1 priority 1 version 7.0
sccp
sccp ccm group 1
associate ccm 1 priority 1
associate profile 40 register 2911xcode
dspfarm profile 40 transcode
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
maximum sessions 3
associate application SCCP
and even I check the "Media Termination Point Required" or not - the situation is the same - codec mismatch.
I'm thinking CUCM does not even try to use the transcoder at all...
how to force CUCM to use the hardware transcoder?
please help me in solving that problem.
P.S. I inserted this hardware transcoder in Media Resource Group. MRG is inserted in MRG List. MRGL is selected in SIP trunk.
when I remove the codec statement in incoming dial-peer on CME - the problem disappears
11-07-2013 06:26 AM
Hi.
Can you post dialpeer config section of both first and second 2911?
Thanks
Regards
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"The more you help the more you learn"
11-11-2013 04:59 AM
hello!
is dial-peers on the first CME important? because it have to work just as MTP or XCODE...
this is the dial-peer section on th second CME
dial-peer voice 777 voip
translation-profile outgoing TO_OFFICE
destination-pattern 700...
session protocol sipv2
session target ipv4:192.168.45.231
dtmf-relay rtp-nte
codec g711ulaw
no vad
!
dial-peer voice 1 voip
incoming called-number .
codec g711ulaw
I use it now just for testing of mtp and xcode...
11-07-2013 06:28 AM
Hi Sergey,
I guess this line is missing:
sccp ccm group 1
bind interface GigabitEthernet0/0
associate profile 40 register 2911xcode
Make sure also you have include this in your gw:
voice class codec 1
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec g729r8
dial-peer voice 555 voip
...
voice-class codec 1
...
Cheers,
Cesar
11-11-2013 08:38 AM
hello!
truely speaking I have forgotten the statement "bind ..."
insert it already.
about dial-peer - at which CME do I have to insert it?
do I have to have some special dial-peer at the first CME (with mtp and xcode)?
11-14-2013 05:32 AM
the question to simplify solving...
how can I debug the transcoder using?
I want to understand whether my CUCM asks for the transcoder resources or not...
11-14-2013 08:10 AM
Read the CUCM traces of the call.
HTH
java
if this helps, please rate
www.cisco.com/go/pdihelpdesk
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