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No audio - SIP trunking between 2 CUCM clusters

Answered Question
Dec 13th, 2011
User Badges:

Hi



I have got a problem with no audio on calls when calling between 2 CUCM clusters via SIP trunk. It works from Cluster 2 to Cluster 1 but not vice versa. Call get connected (ringing) but after I pick up the call I can't hear anything. There is no firewall between those 2 phones. Thank you for help.



Cluster 1: x.x.x.136


Cluster 2: x.x.x.73


ACME SIP proxy: x.x.x.141



Topology looks like this:



CUCM Cluster 1 -> ACME SIP proxy -> CUCM Cluster 2



-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



SIP trace from ACME SIP proxy (x.x.x.141). Call from Cluster 1 to Cluster 2, !!!! UNSUCESSFULL !!!


---------------------------------------------------------



Session ID: 0x0CC3B25A6F137040


Call ID: [email protected]



----------------------------------------


Timestamp     : 09:00:14.158 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.136/40590


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


INVITE sip:[email protected]:5060 SIP/2.0


Date: Mon, 12 Dec 2011 09:00:13 GMT


Call-Info: <sip:x.x.x.136:5060>;method="NOTIFY;Event=telephone-event;Duration=500"


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Allow-Events: presence, kpml


P-Asserted-Identity: <sip:[email protected]>


Supported: timer,resource-priority,replaces


Supported: X-cisco-srtp-fallback


Supported: Geolocation


Min-SE:  1800


Remote-Party-ID: <sip:[email protected]>;party=calling;screen=yes;privacy=off


Content-Length: 0


User-Agent: Cisco-CUCM7.1


To: <sip:[email protected]>


Contact: <sip:[email protected]:5060;transport=tcp>


Expires: 180


Call-ID: [email protected]


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239f8a21c237


CSeq: 101 INVITE


Session-Expires:  1800


Max-Forwards: 70




----------------------------------------




----------------------------------------


Timestamp     : 09:00:14.158 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


SIP/2.0 100 Trying


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


To: <sip:[email protected]>


Call-ID: [email protected]


CSeq: 101 INVITE


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239f8a21c237


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:00:14.248 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


INVITE sip:[email protected]:5060 SIP/2.0


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


To: <sip:[email protected]>


Call-ID: [email protected]


CSeq: 1 INVITE


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07c95-4ee5c29e-7994b765-7e85353b


Call-Info: <sip:x.x.x.136:5060>;method="NOTIFY;Event=telephone-event;Duration=500"


P-Asserted-Identity: <sip:[email protected]>


Supported: timer,resource-priority,replaces,X-cisco-srtp-fallback,Geolocation


Remote-Party-ID: <sip:[email protected]>;party=calling;screen=yes;privacy=off


User-Agent: Cisco-CUCM7.1


Max-Forwards: 70


Allow: INVITE,OPTIONS,INFO,BYE,CANCEL,ACK,PRACK,UPDATE,REFER,SUBSCRIBE,NOTIFY


Allow-Events: presence,kpml


Min-SE: 180


Expires: 180


Session-Expires: 7200;refresher=uas


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=udp>


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:00:14.299 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 100 Trying


Date: Mon, 12 Dec 2011 09:00:13 GMT


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Allow-Events: presence


Content-Length: 0


To: <sip:[email protected]>


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07c95-4ee5c29e-7994b765-7e85353b


CSeq: 1 INVITE




----------------------------------------




----------------------------------------


Timestamp     : 09:00:14.303 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 180 Ringing


Date: Mon, 12 Dec 2011 09:00:13 GMT


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Allow-Events: presence


P-Asserted-Identity: <sip:[email protected]>


Supported: X-cisco-srtp-fallback


Supported: Geolocation


Remote-Party-ID: <sip:[email protected]>;party=called;screen=yes;privacy=off


Content-Length: 0


To: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Contact: <sip:[email protected]:5060>


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07c95-4ee5c29e-7994b765-7e85353b


CSeq: 1 INVITE




----------------------------------------




----------------------------------------


Timestamp     : 09:00:14.304 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/40590


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


SIP/2.0 180 Ringing


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Call-ID: [email protected]


CSeq: 101 INVITE


Allow: INVITE,OPTIONS,INFO,BYE,CANCEL,ACK,PRACK,UPDATE,REFER,SUBSCRIBE,NOTIFY


Allow-Events: presence


P-Asserted-Identity: <sip:[email protected]>


Supported: X-cisco-srtp-fallback,Geolocation


Remote-Party-ID: <sip:[email protected]>;party=called;screen=yes;privacy=off


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239f8a21c237


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=tcp>


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.704 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 183 Session Progress


Date: Mon, 12 Dec 2011 09:00:13 GMT


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Allow-Events: presence, kpml


P-Asserted-Identity: <sip:[email protected]>


Supported: X-cisco-srtp-fallback


Supported: Geolocation


Remote-Party-ID: <sip:[email protected]>;party=called;screen=yes;privacy=off


Content-Length: 372


To: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Contact: <sip:[email protected]:5060>


Content-Type: application/sdp


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07c95-4ee5c29e-7994b765-7e85353b


CSeq: 1 INVITE



v=0


o=CiscoSystemsCCM-SIP 2000 1 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 4000 RTP/AVP 0 8 116 18 101


a=rtpmap:0 PCMU/8000


a=ptime:20


a=rtpmap:8 PCMA/8000


a=ptime:20


a=rtpmap:116 iLBC/8000


a=ptime:20


a=maxptime:60


a=fmtp:116 mode=20


a=rtpmap:18 G729/8000


a=ptime:20


a=sendonly


a=rtpmap:101 telephone-event/8000


a=fmtp:101 0-15



----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.704 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/40590


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


SIP/2.0 183 Session Progress


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Call-ID: [email protected]


CSeq: 101 INVITE


Allow: INVITE,OPTIONS,INFO,BYE,CANCEL,ACK,PRACK,UPDATE,REFER,SUBSCRIBE,NOTIFY


Allow-Events: presence,kpml


P-Asserted-Identity: <sip:[email protected]>


Supported: X-cisco-srtp-fallback,Geolocation


Remote-Party-ID: <sip:[email protected]>;party=called;screen=yes;privacy=off


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239f8a21c237


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=tcp>


Content-Type: application/sdp


Content-Length: 372



v=0


o=CiscoSystemsCCM-SIP 2000 1 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 4000 RTP/AVP 0 8 116 18 101


a=rtpmap:0 PCMU/8000


a=rtpmap:8 PCMA/8000


a=rtpmap:116 iLBC/8000


a=rtpmap:18 G729/8000


a=rtpmap:101 telephone-event/8000


a=ptime:20


a=ptime:20


a=ptime:20


a=maxptime:60


a=fmtp:116 mode=20


a=ptime:20


a=fmtp:101 0-15


a=sendonly



----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.704 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 200 OK


Date: Mon, 12 Dec 2011 09:00:13 GMT


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Allow-Events: presence, kpml


P-Asserted-Identity: "Test 2" <sip:[email protected]>


Supported: replaces


Supported: X-cisco-srtp-fallback


Supported: Geolocation


Remote-Party-ID: "Test 2" <sip:[email protected]>;party=called;screen=yes;privacy=off


Content-Length: 372


Require:  timer


To: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Contact: <sip:[email protected]:5060>


Content-Type: application/sdp


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07c95-4ee5c29e-7994b765-7e85353b


CSeq: 1 INVITE


Session-Expires:  7200;refresher=uas



v=0


o=CiscoSystemsCCM-SIP 2000 1 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 4000 RTP/AVP 0 8 116 18 101


a=rtpmap:0 PCMU/8000


a=ptime:20


a=rtpmap:8 PCMA/8000


a=ptime:20


a=rtpmap:116 iLBC/8000


a=ptime:20


a=maxptime:60


a=fmtp:116 mode=20


a=rtpmap:18 G729/8000


a=ptime:20


a=sendonly


a=rtpmap:101 telephone-event/8000


a=fmtp:101 0-15



----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.705 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/40590


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


SIP/2.0 200 OK


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Call-ID: [email protected]


CSeq: 101 INVITE


Min-SE: 1800


Allow: INVITE,OPTIONS,INFO,BYE,CANCEL,ACK,PRACK,UPDATE,REFER,SUBSCRIBE,NOTIFY


Allow-Events: presence,kpml


P-Asserted-Identity: "Test 2" <sip:[email protected]>


Supported: replaces,X-cisco-srtp-fallback,Geolocation


Remote-Party-ID: "Test 2" <sip:[email protected]>;party=called;screen=yes;privacy=off


Require: timer


Session-Expires: 7200;refresher=uas


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239f8a21c237


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=tcp>


Content-Type: application/sdp


Content-Length: 372



v=0


o=CiscoSystemsCCM-SIP 2000 1 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 4000 RTP/AVP 0 8 116 18 101


a=rtpmap:0 PCMU/8000


a=rtpmap:8 PCMA/8000


a=rtpmap:116 iLBC/8000


a=rtpmap:18 G729/8000


a=rtpmap:101 telephone-event/8000


a=ptime:20


a=ptime:20


a=ptime:20


a=maxptime:60


a=fmtp:116 mode=20


a=ptime:20


a=fmtp:101 0-15


a=sendonly



----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.855 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.136/40590


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : TCP


----------------------------------------


ACK sip:[email protected]:5060;maddr=x.x.x.141;transport=tcp SIP/2.0


Date: Mon, 12 Dec 2011 09:00:13 GMT


From: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Allow-Events: presence, kpml


Content-Length: 247


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Content-Type: application/sdp


Call-ID: [email protected]


Via: SIP/2.0/TCP x.x.x.136:5060;branch=z9hG4bK239fc14824f1a


CSeq: 101 ACK


Max-Forwards: 70



v=0


o=CiscoSystemsCCM-SIP 2000 2 IN IP4 x.x.x.136


s=SIP Call


c=IN IP4 x.x.44.241


t=0 0


m=audio 24576 RTP/AVP 18 101


a=rtpmap:18 G729/8000


a=ptime:20


a=fmtp:18 annexb=no


a=recvonly


a=rtpmap:101 telephone-event/8000


a=fmtp:101 0-15



----------------------------------------




----------------------------------------


Timestamp     : 09:00:16.856 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


ACK sip:[email protected]:5060 SIP/2.0


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


To: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Call-ID: [email protected]


CSeq: 1 ACK


Via: SIP/2.0/UDP x.x.x.141:5060;branch=z9hG4bK-a07cb0-4ee5c2a0-7994c195-730860


Max-Forwards: 70


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=udp>


Content-Type: application/sdp


Content-Length: 247



v=0


o=CiscoSystemsCCM-SIP 2000 2 IN IP4 x.x.x.136


s=SIP Call


c=IN IP4 x.x.44.241


t=0 0


m=audio 24576 RTP/AVP 18 101


a=rtpmap:18 G729/8000


a=rtpmap:101 telephone-event/8000


a=ptime:20


a=fmtp:18 annexb=no


a=fmtp:101 0-15


a=recvonly



----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.186 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


INVITE sip:[email protected]:5060;maddr=x.x.x.141;transport=udp SIP/2.0


Date: Mon, 12 Dec 2011 09:00:16 GMT


Call-Info: <sip:x.x.x.73:5060>;method="NOTIFY;Event=telephone-event;Duration=500"


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Allow-Events: presence, kpml


P-Asserted-Identity: "Test 2" <sip:[email protected]>


Supported: timer,resource-priority,replaces


Min-SE:  1800


Remote-Party-ID: "Test 2" <sip:[email protected]>;party=calling;screen=yes;privacy=off


Content-Length: 158


User-Agent: Cisco-CUCM7.1


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Contact: <sip:[email protected]:5060>


Expires: 180


Content-Type: application/sdp


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c1f65bd59dd


CSeq: 101 INVITE


Session-Expires:  7200;refresher=uac


Max-Forwards: 70



v=0


o=CiscoSystemsCCM-SIP 2000 2 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 24582 RTP/AVP 18


a=rtpmap:18 G729/8000


a=ptime:20



----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.186 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 100 Trying


From: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Call-ID: [email protected]


CSeq: 101 INVITE


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c1f65bd59dd


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.187 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


INVITE sip:[email protected]:5060 SIP/2.0


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


To: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Call-ID: [email protected]


CSeq: 1 INVITE


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a07cb1-4ee5c2a1-7994c2df-95f93bf


Call-Info: <sip:x.x.x.73:5060>;method="NOTIFY;Event=telephone-event;Duration=500"


P-Asserted-Identity: "Test 2" <sip:[email protected]>


Supported: timer,resource-priority,replaces


Remote-Party-ID: "Test 2" <sip:[email protected]>;party=calling;screen=yes;privacy=off


User-Agent: Cisco-CUCM7.1


Max-Forwards: 70


Allow: INVITE,OPTIONS,INFO,BYE,CANCEL,ACK,PRACK,UPDATE,REFER,SUBSCRIBE,NOTIFY


Allow-Events: presence,kpml


Min-SE: 180


Expires: 180


Session-Expires: 7200;refresher=uas


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=tcp>


Content-Type: application/sdp


Content-Length: 158



v=0


o=CiscoSystemsCCM-SIP 2000 2 IN IP4 x.x.x.73


s=SIP Call


c=IN IP4 x.x.35.124


t=0 0


m=audio 24582 RTP/AVP 18


a=rtpmap:18 G729/8000


a=ptime:20



----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.188 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


SIP/2.0 100 Trying


Date: Mon, 12 Dec 2011 09:00:16 GMT


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Allow-Events: presence, kpml


Content-Length: 0


To: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Call-ID: [email protected]


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a07cb1-4ee5c2a1-7994c2df-95f93bf


CSeq: 1 INVITE




----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.387 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


SIP/2.0 200 OK


Date: Mon, 12 Dec 2011 09:00:16 GMT


Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY


From: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Allow-Events: presence, kpml


P-Asserted-Identity: <sip:[email protected]>


Supported: replaces


Supported: X-cisco-srtp-fallback


Supported: Geolocation


Remote-Party-ID: <sip:[email protected]>;party=called;screen=yes;privacy=off


Content-Length: 179


Require:  timer


To: <sip:[email protected]>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Contact: <sip:[email protected]:5060;transport=tcp>


Content-Type: application/sdp


Call-ID: [email protected]


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a07cb1-4ee5c2a1-7994c2df-95f93bf


CSeq: 1 INVITE


Session-Expires:  7200;refresher=uas



v=0


o=CiscoSystemsCCM-SIP 2000 3 IN IP4 x.x.x.136


s=SIP Call


c=IN IP4 x.x.44.241


t=0 0


m=audio 24578 RTP/AVP 18


a=rtpmap:18 G729/8000


a=ptime:20


a=fmtp:18 annexb=no



----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.388 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 200 OK


From: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Call-ID: [email protected]


CSeq: 101 INVITE


Min-SE: 1800


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c1f65bd59dd


Contact: <sip:[email protected]:5060;maddr=x.x.x.141;transport=udp>


Session-Expires: 7200


Content-Type: application/sdp


Content-Length: 179



v=0


o=CiscoSystemsCCM-SIP 2000 3 IN IP4 x.x.x.136


s=SIP Call


c=IN IP4 x.x.44.241


t=0 0


m=audio 24578 RTP/AVP 18


a=rtpmap:18 G729/8000


a=ptime:20


a=fmtp:18 annexb=no



----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.438 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


ACK sip:[email protected]:5060;maddr=x.x.x.141;transport=udp SIP/2.0


Date: Mon, 12 Dec 2011 09:00:16 GMT


From: <sip:[email protected]>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Allow-Events: presence, kpml


Content-Length: 0


To: <sip:[email protected]>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Call-ID: [email protected]


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c20452fbba8


CSeq: 101 ACK


Max-Forwards: 70




----------------------------------------




----------------------------------------


Timestamp     : 09:00:17.439 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


ACK sip:1001@x.x.x.136:5060;transport=tcp SIP/2.0


From: <sip:1000@x.x.x.141>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


To: <sip:1001@x.x.x.136>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Call-ID: b26a9200-ee51c29d-a246-88b99509@x.x.x.136


CSeq: 1 ACK


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a07cb4-4ee5c2a1-7994c3dc-6b1d8378


Max-Forwards: 70


Contact: <sip:1000@x.x.x.141:5060;maddr=x.x.x.141;transport=tcp>


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:01:51.358 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


BYE sip:1001@x.x.x.141:5060;maddr=x.x.x.141;transport=udp SIP/2.0


Date: Mon, 12 Dec 2011 09:00:16 GMT


From: <sip:1000@x.x.x.141>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


Content-Length: 0


User-Agent: Cisco-CUCM7.1


To: <sip:1001@x.x.x.141>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Call-ID: b26a9200-ee51c29d-a246-88b99509@x.x.x.136


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c2c96e899c


CSeq: 102 BYE


Max-Forwards: 70




----------------------------------------




----------------------------------------


Timestamp     : 09:01:51.358 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.73/5060


Local IP/Port : x.x.x.141(eth2)/5060


Transport     : UDP


----------------------------------------


SIP/2.0 200 OK


From: <sip:1000@x.x.x.141>;tag=b198b18d-c724-4969-b786-ed1c32fbf1b6-22806454


To: <sip:1001@x.x.x.141>;tag=8db99509-13c4-4ee5c29e-7994b765-85cfca


Call-ID: b26a9200-ee51c29d-a246-88b99509@x.x.x.136


CSeq: 102 BYE


Via: SIP/2.0/UDP x.x.x.73:5060;branch=z9hG4bK1c2c96e899c


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:01:51.359 2011-12-12


Direction     : TX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


BYE sip:1001@x.x.x.136:5060;transport=tcp SIP/2.0


From: <sip:1000@x.x.x.141>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


To: <sip:1001@x.x.x.136>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Call-ID: b26a9200-ee51c29d-a246-88b99509@x.x.x.136


CSeq: 2 BYE


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a08161-4ee5c2ff-799632bc-3b1bc195


Max-Forwards: 70


Content-Length: 0




----------------------------------------




----------------------------------------


Timestamp     : 09:01:51.362 2011-12-12


Direction     : RX


Remote IP/Port: x.x.x.136/5060


Local IP/Port : x.x.x.141(eth2)/2499


Transport     : TCP


----------------------------------------


SIP/2.0 200 OK


Date: Mon, 12 Dec 2011 09:01:50 GMT


From: <sip:1000@x.x.x.141>;tag=8db99509-13c4-4ee5c29e-7994b79d-6c07ea17


Content-Length: 0


To: <sip:1001@x.x.x.136>;tag=db473620-456f-4d24-9195-d807c3d6ce15-155400543


Call-ID: b26a9200-ee51c29d-a246-88b99509@x.x.x.136


Via: SIP/2.0/TCP x.x.x.141:5060;branch=z9hG4bK-a08161-4ee5c2ff-799632bc-3b1bc195


CSeq: 2 BYE




----------------------------------------

Correct Answer by david@dk.ibm.com about 5 years 8 months ago

Hi,


It sounds like a codec negotiation issue. Judging from your trace, you plan to use G.729 across or ?


Try to remove G.729 Annex B silence suppresion as a G.729 variant. Go to:

System -> Services -> "Choose any Server" -> Cisco Callmanager

"Strip G.729 Annex B (Silence Suppression) from Capabilities Required Field" and set it to True.


It will automatically get replicated to all nodes in your cluster.


It might help or it might be something else.

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Correct Answer
david@dk.ibm.com Thu, 12/15/2011 - 03:56
User Badges:

Hi,


It sounds like a codec negotiation issue. Judging from your trace, you plan to use G.729 across or ?


Try to remove G.729 Annex B silence suppresion as a G.729 variant. Go to:

System -> Services -> "Choose any Server" -> Cisco Callmanager

"Strip G.729 Annex B (Silence Suppression) from Capabilities Required Field" and set it to True.


It will automatically get replicated to all nodes in your cluster.


It might help or it might be something else.

Leonardo Tadeu Thu, 12/15/2011 - 05:41
User Badges:
  • Blue, 1500 points or more

Hello Rasdolav


From the network of the IP Phone registered in cluster 1 to the network of the IP Phone registered on the cluster 2 do you have reachability?


Thanks

radoslav-drabik Thu, 12/15/2011 - 05:44
User Badges:

Hi


the issue is solved now. The problem was with the "Silence Suppression" suppression as David descripted. Once we turned it off it started to work. Thank you!

Wilson Gonzalez Tue, 12/02/2014 - 06:43
User Badges:

David, 

 

Thanks very much for this solution, not even Cisco TAC has been able to pinpoint this issue until I decided to look at the traces and troubleshoot this myself.

 

Kudos for you!

 

Wilson

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