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2013
Views
5
Helpful
15
Replies

CIPC sending Cancel after establishing a call

Wonxie
Level 1
Level 1

Hi

some users are facing issues with connecting a call. when they dial using cipc the cucm routes them via sip trunk for which i have attached one packet analysis and logs below. the caller says that the call rings and then he gets fast busy tone. the call reciever also complains of so.

10.65.102.11 is CUCM pub

10.65.12.3 is Router

*Dec 9 13:35:31.812: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
CANCEL sip:91xxxxxxxxxx@10.65.12.3:5060 SIP/2.0
Via: SIP/2.0/TCP 10.65.102.11:5060;branch=z9hG4bK5618a2904b5e
From: "UserX" <sip:2060@10.65.102.11>;tag=1029393~5f79ec65-2bba-42ae-995d-dd9649fc752b-49967349
To: <sip:91xxxxxxxxxx@10.65.12.3>
Date: Fri, 09 Dec 2022 14:44:06 GMT
Call-ID: ed2ec480-393149b6-545e1-b66410a@10.65.102.11
CSeq: 101 CANCEL
Max-Forwards: 70
Reason: Q.850;cause=47
Content-Length: 0


Timestamp: 3753437731812
UTC Timestamp:3753437731812
Source Filename: logs.txtsip packet.png

 

15 Replies 15

Wonxie
Level 1
Level 1

the problem is fixed for couple of users .. in softphone settings i unchecked "optimize for low bandwidth" and the calls went through.

i dont know what could have caused it. no change done on anything.