[Freeswitch-users] Call drop with 406 after being answered

Igor Potjevlesh igor.potjevlesch at gmail.com
Fri Jun 11 16:42:47 UTC 2021

Hi David,


I got a SIP trace. Do you think of another kind of trace? Something in addition of log level debug?






De : FreeSWITCH-users <freeswitch-users-bounces at lists.freeswitch.org> De la part de David Villasmil
Envoyé : vendredi 11 juin 2021 12:45
À : FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Objet : Re: [Freeswitch-users] Call drop with 406 after being answered


Try getting a trace for the call.


On Fri, 11 Jun 2021 at 10:12, Igor Potjevlesh <igor.potjevlesch at gmail.com <mailto:igor.potjevlesch at gmail.com> > wrote:



I'm facing a problem with a call scenario with an in-dialog INVITE just after the call has been picked up.

Freeswitch receive on his leg B this in-dialog INVITE. Not forwarded to leg A. 

In a SIP trace, I can see 406 Not Acceptable on leg B whereas there is no difference in the Media except "Bandwidth Information" which is "AS:80" versus "AS:82" in the RE-INVITE.

I turn on the logs on debug, but nothing specific appears. The first thing:

3f6d8dd1-5415-4a58-a948-551d841cf5dd 2021-06-11 10:34:12.873542 [NOTICE] sofia.c:1012 Hangup sofia/internal/ABC [CS_EXCHANGE_MEDIA] [NORMAL_CLEARING]

3f6d8dd1-5415-4a58-a948-551d841cf5dd 2021-06-11 10:34:12.873542 [DEBUG] switch_ivr_bridge.c:787 BRIDGE THREAD DONE [sofia/internal/ABC]

3f6d8dd1-5415-4a58-a948-551d841cf5dd 2021-06-11 10:34:12.873542 [DEBUG] switch_core_state_machine.c:653 (sofia/internal/ ABC) State EXCHANGE_MEDIA going to sleep


5f1866f7-f6c6-43c9-83bb-07cbb51cc3a5 2021-06-11 10:34:12.893545 [DEBUG] switch_core_session.c:2815 sofia/lega/+FROM at W.X.Y.Z <mailto:sofia/lega/+FROM at W.X.Y.Z> . skip receive message [APPLICATION_EXEC_COMPLETE] (channel is hungup already)


Is there any reason for this? SDP is not duplicated, but there is no specific reason for replying with 406.








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