Call disconnecting in CME after pickup

[ctsvoiceteam]

hello champs,

 Call got disconnecting immediately after answering the call in CME, this is happend only when call is came through SIP trunk, below is the set up

CUCM -> SIP Trunk->CME

when we make a call from CUCM  to CME this is happend, but when we make the call from CME to CUCM its fine. here i attached the debug ccsip messege,

please help guys.

[Ayodeji Okanlawon]

Glad to know its working now..

Here is the clue to knowing where the issue was..

The original logs showed this..

++ 200 OK sent to CUCM from CCME contains no DTMF method ++

Sent:
SIP/2.0 200 OK
Via: SIP/2.0/TCP 172.25.225.11:5060;branch=z9hG4bK6884133e9bb02
From: <sip:52333@172.25.225.11>;tag=4279344~b8eb621a-bc9d-4a8c-9274-855b9682f601-75071428
To: <sip:60090@192.168.60.65>;tag=AE756D24-2693
----
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 433
v=0
o=CiscoSystemsSIP-GW-UserAgent 6922 6961 IN IP4 192.168.60.65
s=SIP Call
c=IN IP4 192.168.60.65
t=0 0
m=audio 19700 RTP/AVP 18 0 8 9 4 96 15 19
c=IN IP4 192.168.60.65
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=fmtp:9 bitrate=64
a=rtpmap:4 G723/8000
a=fmtp:4 bitrate=6.3;annexa=no
a=rtpmap:96 G726-32/8000
a=rtpmap:15 G728/8000
a=rtpmap:19 CN/8000

+++ the ACK received from CUCM contains RFC2833/rtp-nte +++
Oct 17 05:20:41.246: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
ACK sip:60090@192.168.60.65:5060;transport=tcp SIP/2.0
Via: SIP/2.0/TCP 172.25.225.11:5060;branch=z9hG4bK688433f690985
From: <sip:52333@172.25.225.11>;tag=4279344~b8eb621a-bc9d-4a8c-9274-855b9682f601-75071428
---
---
Content-Type: application/sdp
Content-Length: 249
v=0
o=CiscoSystemsCCM-SIP 4279344 1 IN IP4 172.25.225.11
s=SIP Call
c=IN IP4 172.25.170.25
b=TIAS:64000
b=CT:64
b=AS:64
t=0 0
m=audio 28200 RTP/AVP 9 101
a=ptime:20
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=audio 28200 RTP/AVP 9 101
a=ptime:20
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

+++ DSP Alarm ++
Immediately after the ACK sent by CUCM, you then get the following IEC error ++

Oct 17 05:20:41: %DSMP-3-DSPALARM: Alarm on DSP : status=0x0 message=0x0 text=N
Oct 17 05:20:41: %VOICE_IEC-3-GW: VTSP: Internal Error (DSP alarm): IEC=1.1.182.9.27.10 on callID 120254 GUID=DD6C53000001000000012B140BE119AC

++ Conclusion ++

Hence from both of these logs, I was able to deduce that CCME is trying to invoke some media resources and it can only be due to DTMF mismatch

[ctsvoiceteam]

got it, thanks a lot ayodeji...