06-19-2019 06:05 PM
Hi my Cisco router 3900 always send PCMA in sdp but telco wants PCMU only.
CUCM -> CUBE trunk has MTP checked, but MTP is shutdown state. Does this matter?
voice class codec 2 (applied on the outgoing dial-peer to ITSP)
codec preference 1 g711ulaw
codec preference 2 g711alaw
dspfarm profile 200 transcode
description transcode profile 200
codec g729abr8
codec g729ar8
codec g711ulaw
codec g729r8
codec g711alaw
maximum sessions 4
associate application SCCP
!
dspfarm profile 100 conference
description conference profile 100
codec g729br8
codec g729r8
codec g729abr8
codec g729ar8
codec g711alaw
codec g711ulaw
maximum sessions 4
associate application SCCP
dspfarm profile 1 mtp
codec g711ulaw
codec pass-through
maximum sessions software 8
associate application SCCP
shutdown
SIP INVITE message snippet.
Session-Expires: 10800
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 238
v=0
o=CiscoSystemsSIP-GW-UserAgent 4311 4515 IN IP4 10.0.8.86
s=SIP Call
c=IN IP4 10.0.8.86
t=0 0
m=audio 25704 RTP/AVP 8 101
c=IN IP4 10.0.8.86
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
06-19-2019 11:32 PM
06-20-2019 12:43 AM
Thank you for reply, you mean update as below for option 2?
dspfarm profile 1 mtp
codec g711ulaw
maximum sessions software 8
associate application SCCP
no shutdown
or Can I make CUCM delayed offer (i mean disable "early offer support for voice and video calls- Mandatory Insert MTP if needed" in SIP trunk profile)
06-20-2019 12:42 AM
1) Disable the Codec from CUCM Service Parameters and try
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Thanks,
Haris
06-20-2019 03:05 AM
06-20-2019 03:17 AM
06-20-2019 07:03 AM
06-20-2019 12:44 AM
06-20-2019 01:26 AM
06-20-2019 07:04 AM
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