[Freeswitch-users] sip cancel request fails

[Michael Jerris]

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 at 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 at 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 at 10.1.21.44>;tag=as7f6965ea
>    To: <sip:70904 at b-lab-1.mynet.net>
>    Call-ID: 237598fd102b739a03b4a4047bf69843 at 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 at 10.1.21.44>;tag=as7f6965ea
>    To: <sip:70904 at b-lab-1.mynet.net>;tag=71m745HKHKyjc
>    Call-ID: 237598fd102b739a03b4a4047bf69843 at 10.1.21.44
>    CSeq: 103 CANCEL
>    Content-Length: 0
>
>    --------------------------------------
>
>
>
> Thanks.  - SW
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