[Freeswitch-users] freeswitch continously sending sip update-messages: why?

[Steven Ayre]

Does the client send an ACK for the UPDATE?



On 8 January 2013 15:22, Michel Brabants <michel.brabants at gmail.com> wrote:
> Hello,
>
> I'm testing freeswitch as an sbc (version 1.2.5.3). I think I discovered a
> bug, but I still have to verify it against git if I can find the time to
> compile it. Anyway, it all relates to session-timer according to me, but
> even if I disable session-timers, freeswitch still sends sip-update-messages
> to the sip-client. Freeswitch is dropping the calls after 30 seconds because
> of this. There is no problem with natting, firewalling, ... as far as I can
> tell as I'm tracing the packets on all ends. A packet from freeswitch to the
> sip-client (phone behind other B2B-server):
>
>  UPDATE sip:10000 at lab2.ddm.priv SIP/2.0
>    Via: SIP/2.0/UDP 172.16.105.14;rport;branch=
> z9hG4bKS2pQKQ7SrNgce
>    Max-Forwards: 70
>    From: <sip:8888 at 172.16.105.17:5060>;tag=X5FKtKj9ZHaDc
>    To:
> <sip:10000 at lab2.ddm.priv>;tag=849E1A5B-6750-4EDE-B7CF-72DF979FD126-40026
>    Call-ID: 5AC29923-74EE-46B2-830A-9CB78B9DB47F-39541 at 172.16.105.17
>    CSeq: 38492344 UPDATE
>    Contact: <sip:8888 at 172.16.105.14:5060;transport=udp>
>    User-Agent: FreeSWITCH-mod_sofia/1.2.5.3+git~20121206T050429Z~91eef34d5c
>    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REFER,
> NOTIFY
>    Supported: precondition, path, replaces
>    Content-Type: application/sdp
>    Content-Disposition: session
>    Content-Length: 249
>    P-Asserted-Identity: "Outbound Call" <0001>
>
>    v=0
>    o=FreeSWITCH 1357636566 1357636567 IN IP4 172.16.105.14
>    s=FreeSWITCH
>    c=IN IP4 172.16.105.14
>    t=0 0
>    m=audio 20250 RTP/AVP 9 127
>    a=rtpmap:9 G722/8000
>    a=rtpmap:127 telephone-event/8000
>    a=fmtp:127 0-16
>    a=silenceSupp:off - - - -
>    a=ptime:20
>
>
>
> The other end of the sbc/client doesn't support session-timers or update
> (yate client), and it doesn't have this problem.
>
> So, the main question is:
>
> --> Why is freeswitch sending these update-messages while the codec, ...
> remains the same as far as I can tell. It isn't a session-timer, because it
> is enabled in the profile and it doesn't appear in the message too (which
> means the disable had some influence ...)?
>
> So, is there a way to:
>  1) fix the above?
>  2) force session-timers to use reinvite instead of update. As this case may
> be a way around the bug (freeswitch doing as it is the refresher while they
> agreed that the client is the session-timer-refresher).
>  3) (asked before, but not answered) Is there a way to disable
> sip-"update"-message-support in freeswitch?
>
> Thank you and kind regards,
>
> Michel
>
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