This means we could not match the cancel to a current call dialog. I would need to see the full sip trace of the call to know why, but typically this is because of not matching call Id or to or from tags Mike On Mar 24, 2009, at 9:43 AM, Steven Ward <steve.d.ward@gmail.com> wrote:
A CANCEL request sent from my Asterisk UA (10.1.21.44) to FS (b- lab-1) while the call is still ringing does not work.
Why is this request resulting in a 481?
I appreciate the help - I'm still just starting to learn SIP & FS. The CANCEL request and 481 response appear as follows on my FS console:
recv 362 bytes from udp/[10.1.21.44]:5060 at 13:30:23.291616:
--- --------------------------------------------------------------------- CANCEL sip:70904@b-pbx-lab-1.mynet.net SIP/2.0 Via: SIP/2.0/UDP 10.1.21.44:5060;branch=z9hG4bK6f7f35ab;rport From: "Steve" <sip:70904@10.1.21.44>;tag=as7f6965ea To: <sip:70904@b-lab-1.mynet.net> Call-ID: 237598fd102b739a03b4a4047bf69843@10.1.21.44 CSeq: 103 CANCEL User-Agent: Asterisk PBX Max-Forwards: 70 Content-Length: 0
--- --------------------------------------------------------------------- send 327 bytes to udp/[10.1.21.44]:5060 at 13:30:23.292235:
--- --------------------------------------------------------------------- SIP/2.0 481 Call/Transaction Does Not Exist Via: SIP/2.0/UDP 10.1.21.44:5060;branch=z9hG4bK6f7f35ab;rport=5060 From: "Steve" <sip:70904@10.1.21.44>;tag=as7f6965ea To: <sip:70904@b-lab-1.mynet.net>;tag=71m745HKHKyjc Call-ID: 237598fd102b739a03b4a4047bf69843@10.1.21.44 CSeq: 103 CANCEL Content-Length: 0
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Thanks. - SW _______________________________________________ Freeswitch-users mailing list Freeswitch-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org