[Freeswitch-users] INVITE and hangup in the middle of a call

Oleg Stolyar olegstolyar at gmail.com
Thu May 28 01:13:46 MSD 2015 

Sure Sharath, I only meant that the workaround works for me since I don't
need the mid-call offers/answers.

On Wed, May 27, 2015 at 1:47 PM, Sharath Kumar <Sharath.Kumar at mezocliq.com>
wrote:

>  Thanks Oleg. Disabling session timers is okay to fix it for regular
> calls albeit without session timers. But there is also the case of
> hold/retrieve and other mid-call offer/answers, like say adding someone
> into a conference etc, where this problem arises. This is a complicated
> problem.  I am yet to test the fix. But chrome has some outstanding
> problems with role changes as well. They don’t fully support the RFC yet.
>
> https://code.google.com/p/webrtc/issues/detail?id=2782
>
>
>
> "#4 juberti at chromium.org
> Offers MUST always use actpass, but Chrome does not support role changes.
> So, if A calls B, A offers actpass, B responds with active. But then if B
> does a reoffer to A, B has to offer actpass, and A must respond with
> passive (since A was chosen as passive before by B's choice of active).
> Naturally, if A reoffers, A offers actpass and B must respond (again) with
> active."
>
>
>
>
>
> Thank you,
>
> Sharath
>
>
>
>
>
>
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Oleg Stolyar
> *Sent:* Wednesday, May 27, 2015 4:24 PM
>
> *To:* FreeSWITCH Users Help
> *Subject:* Re: [Freeswitch-users] INVITE and hangup in the middle of a
> call
>
>
>
> You are right Sharath!  I resolved mine as a duplicate.
>
>
>
> On Wed, May 27, 2015 at 12:12 PM, Sharath Kumar <
> Sharath.Kumar at mezocliq.com> wrote:
>
>  https://freeswitch.org/jira/browse/FS-7432
>
>
>
> There is also this.
>
>
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Oleg Stolyar
> *Sent:* Wednesday, May 27, 2015 12:14 PM
> *To:* FreeSWITCH Users Help
> *Subject:* Re: [Freeswitch-users] INVITE and hangup in the middle of a
> call
>
>
>
> Jira: https://freeswitch.org/jira/browse/FS-7582
>
>
>
> It turns out that FS actually does not send a=setup at all in reINVITES.
> I am not comfortable enough with the code to add an SDP attribute.  Also
> this is now a low priority for me since there is a simple workaround of
> disabling session timers.
>
>
>
> On Tue, May 26, 2015 at 9:07 AM, Michael Jerris <mike at jerris.com> wrote:
>
>  Please file a jira for us on that.  Even better with a pull request to
> fix it.
>
>
>
>  On May 26, 2015, at 11:13 AM, Oleg Stolyar <olegstolyar at gmail.com> wrote:
>
>
>
> Just FYI, the JsSip engineers replied to my questions with this:
>
>
>
> The error happens because the incoming reINVITE has a=setup:active in
> the SDP which is a bug in FreeSwitch (the RFC clearly states that the
> SDP offer MUST have a=setup:actpass):
>
>
>
> On Mon, May 25, 2015 at 7:36 AM, Oleg Stolyar <olegstolyar at gmail.com>
> wrote:
>
>  Thanks Steven!
>
>
>
> It may be https://freeswitch.org/jira/browse/FS-7040.
>
>
>
> As far as the 120 sec is concerned - Below are snippets from both the
> invite and the 200 OK from FS.  I know that FS reads the Session-Expires
> from the client because if I change it to a value less than 120, FS sends
> back a "SIP/2.0 422 Session Interval Too Small".  I  even thought the
> problem could be that the Session-Exipres format in the original INVITE is
> incorrect since it does not contain ";refresher=uac" but when I added that
> and made the line "Session-Expires: 300;refresher=uac" nothing changed.
>
>
>
>
>
> INVITE sip:echo-test at anonymous.invalid SIP/2.0
>
> Via: SIP/2.0/WSS pfcnm9rjv5en.invalid;branch=z9hG4bK8223029
>
> Max-Forwards: 69
>
> To: <sip:echo-test at anonymous.invalid>
>
> From: "b3N0b2x5YXI" <sip:anonymous at anonymous.invalid>;tag=h1059gcvb2
>
> Call-ID: r65e48gp171p21rkppcu
>
> CSeq: 6621 INVITE
>
> Contact: <sip:mqthb9dj at pfcnm9rjv5en.invalid;transport=ws;ob>
>
> Content-Type: application/sdp
>
> Session-Expires: 300
>
> Allow: INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS
>
> Supported: timer,ice,outbound
>
> User-Agent: JsSIP 0.6.26
>
> Content-Length: 2754
>
>
>
> SIP/2.0 200 OK
>
> Via: SIP/2.0/WSS
> pfcnm9rjv5en.invalid;branch=z9hG4bK8223029;received=69.53.236.236;rport=35200
>
> From: "b3N0b2x5YXI" <sip:anonymous at anonymous.invalid>;tag=h1059gcvb2
>
> To: <sip:echo-test at anonymous.invalid>;tag=SgjX0X4arHUFg
>
> Call-ID: r65e48gp171p21rkppcu
>
> CSeq: 6621 INVITE
>
> Contact: <sip:echo-test at 50.19.255.62:5080;transport=udp>
>
> User-Agent: FreeSWITCH-mod_sofia/1.5.15b~64bit
>
> Accept: application/sdp
>
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
> REFER, NOTIFY, PUBLISH, SUBSCRIBE
>
> Require: timer
>
> Supported: timer, path, replaces
>
> Allow-Events: talk, hold, conference, presence, as-feature-event, dialog,
> line-seize, call-info, sla, include-session-description, presence.winfo,
> message-summary, refer
>
> Session-Expires: 120;refresher=uac
>
> Content-Type: application/sdp
>
> Content-Disposition: session
>
> Content-Length: 809
>
> X-Netflix: yes
>
> Remote-Party-ID: "echo-test" <sip:echo-test at anonymous.invalid
> >;party=calling;privacy=off;screen=no
>
>
>
>
>
> On Mon, May 25, 2015 at 1:51 AM, Steven Ayre <steveayre at gmail.com> wrote:
>
>  The values to actual use are negotiated during the call invite, and your
> trace shows it's using 2 minutes.
>
> Session-Expires: 120;refresher=uac
> Min-SE: 120
>
> Just as an idea because you didn't send both invite and re-invite...
> perhaps the SDP body is different in the reinvite without the version
> number having changed. If so it may be
> https://freeswitch.org/jira/browse/FS-7040
>
>
>
> On 20 May 2015 at 15:40, Oleg Stolyar <olegstolyar at gmail.com> wrote:
>
>  But isn't that based on the session-timeout param which defaults to 30
> min?  My re-invites occur much sooner than 30 min into a call.  Or does
> session-timeout param only control sessions initiated by FS while incoming
> sessions use the minimum-session-expires param if it's not explicitly
> passed by the session initiator?
>
>
>
> On Tue, May 19, 2015 at 11:40 PM, Michael Jerris <mike at jerris.com> wrote:
>
> session timer
>
>
>
> On Tuesday, May 19, 2015, Oleg Stolyar <olegstolyar at gmail.com> wrote:
>
>  Thanks Michael, I'll see if we can do that!
>
>
>
> So, is the re-INVITE legit and the problem is that JsSip does not respond
> to it?  Still, I am curious what is triggering the re-INVITE.
>
>
>
> On Tue, May 19, 2015 at 8:05 PM, Michael Jerris <mike at jerris.com> wrote:
>
> I think the sip.js guys fixed this issue when they forked jssip.  I'd
> suggest using that.
>
>
> > On May 19, 2015, at 10:01 PM, Oleg Stolyar <olegstolyar at gmail.com>
> wrote:
> >
> > Hi guys,
> >
> > Several weeks ago I started getting an occasional problem where FS is
> sending an INVITE to the other side in the middle of a call, the other side
> does not respond and FS hangs up the leg.  Below is the relevant log.  The
> user experience is that they keep talking and hearing each other up to the
> very end.  I have a recording of that call, so can confirm.
> >
> > The call uses WebRTC and is originated by JsSip from Chrome.  Then the
> user is put into a conference but I doubt it's relevant in this case since
> the INVITE and disconnect are not happening from mod_conference
> >
> > I suspect it's a re-INVITE but what triggers FS to send it?  I couldn't
> find anything in the logs that could shed light.
> >
> > send 1625 bytes to wss/[##.##.##.##]:50292 at 00:00:19.702933:
> >
> ------------------------------------------------------------------------
> >    INVITE sip:dj012n41 at u40rf5qikah5.invalid;transport=ws;ob SIP/2.0
> >    Via: SIP/2.0/WSS 10.97.158.232:5067;branch=z9hG4bK7Xm4tjevU45Sr
> >    Max-Forwards: 70
> >    From: <
> sip:answer-c4e14a20-fe82-11e4-95ed-22000b358f22 at anonymous.invalid
> >;tag=KQecUSr12rSQp
> >    To: "user1" <sip:anonymous at anonymous.invalid>;tag=v1rlqab64i
> >    Call-ID: g8980rbrbk2t45oj5mru
> >    CSeq: 75703945 INVITE
> >    Contact: <
> sip:answer-c4e14a20-fe82-11e4-95ed-22000b358f22@##.##.###.###:5080;transport=udp
> >
> >    User-Agent: FreeSWITCH-mod_sofia/1.5.15b~64bit
> >    Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
> REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
> >    Supported: timer, path, replaces
> >    Session-Expires: 120;refresher=uac
> >    Min-SE: 120
> >    Content-Type: application/sdp
> >    Content-Disposition: session
> >    Content-Length: 825
> >
> >    v=0
> >    o=FreeSWITCH 1432057287 1432057288 IN IP4 ##.##.##.##
> >    s=FreeSWITCH
> >    c=IN IP4 ##.##.##.##
> >    t=0 0
> >    a=msid-semantic: WMS uZEfxiWc2Dm3Mj8pRAdC8BQDwtTzC6hW
> >    m=audio 22670 RTP/SAVPF 9 126 106
> >    a=rtpmap:9 G722/8000
> >    a=rtpmap:126 telephone-event/8000
> >    a=rtpmap:106 CN/8000
> >    a=ptime:20
> >    a=fingerprint:sha-256
> E4:E2:DD:6C:60:61:69:9D:FD:21:64:79:66:C0:14:58:DD:67:CE:29:35:35:58:65:2E:91:70:85:4C:6C:47:69
> >    a=rtcp-mux
> >    a=rtcp:22670 IN IP4 ##.##.##.##
> >    a=ssrc:1029894069 cname:VL2jTPmLiyFVIEaq
> >    a=ssrc:1029894069 msid:uZEfxiWc2Dm3Mj8pRAdC8BQDwtTzC6hW a0
> >    a=ssrc:1029894069 mslabel:uZEfxiWc2Dm3Mj8pRAdC8BQDwtTzC6hW
> >    a=ssrc:1029894069 label:uZEfxiWc2Dm3Mj8pRAdC8BQDwtTzC6hWa0
> >    a=ice-ufrag:5dS3Fzx1Thrmdy9Z
> >    a=ice-pwd:a19UHlvPK1BjvBzrFilbII2s
> >    a=candidate:3876535948 1 udp 659136 107.20.175.160 22670 typ host
> generation 0
> >
> ------------------------------------------------------------------------
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:19.376858 [DEBUG]
> switch_core_session.c:1061 Send signal
> sofia/leia_agent/anonymous at anonymous.invalid [BREAK]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:19.376858 [DEBUG]
> sofia.c:6627 Channel sofia/leia_agent/anonymous at anonymous.invalid
> entering state [calling][0]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [DEBUG]
> switch_core_session.c:1061 Send signal
> sofia/leia_agent/anonymous at anonymous.invalid [BREAK]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [DEBUG]
> switch_core_session.c:1061 Send signal
> sofia/leia_agent/anonymous at anonymous.invalid [BREAK]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [DEBUG]
> sofia.c:6627 Channel sofia/leia_agent/anonymous at anonymous.invalid
> entering state [terminating][503]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [NOTICE]
> sofia.c:7543 Hangup sofia/leia_agent/anonymous at anonymous.invalid
> [CS_EXECUTE] [NORMAL_TEMPORARY_FAILURE]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [DEBUG]
> switch_channel.c:3242 Send signal
> sofia/leia_agent/anonymous at anonymous.invalid [KILL]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.616874 [DEBUG]
> switch_core_session.c:1396 Send signal
> sofia/leia_agent/anonymous at anonymous.invalid [BREAK]
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> mod_conference.c:5057 Channel leaving conference, cause:
> NORMAL_TEMPORARY_FAILURE
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> mod_conference.c:9650 sofia/leia_agent/anonymous at anonymous.invalid skip
> receive message [UNBRIDGE] (channel is hungup already)
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_media.c:7772 sofia/leia_agent/anonymous at anonymous.invalid
> skip receive message [REFER_EVENT] (channel is hungup already)
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_codec.c:246 sofia/leia_agent/anonymous at anonymous.invalid
> Restore previous codec G722:9.
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_session.c:2901 sofia/leia_agent/anonymous at anonymous.invalid
> skip receive message [APPLICATION_EXEC_COMPLETE] (channel is hungup already)
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:535 (
> sofia/leia_agent/anonymous at anonymous.invalid) State EXECUTE going to sleep
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:472 (
> sofia/leia_agent/anonymous at anonymous.invalid) Running State Change
> CS_HANGUP
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:735 (
> sofia/leia_agent/anonymous at anonymous.invalid) Callstate Change ACTIVE ->
> HANGUP
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:737 (
> sofia/leia_agent/anonymous at anonymous.invalid) State HANGUP
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> mod_sofia.c:413 Channel sofia/leia_agent/anonymous at anonymous.invalid
> hanging up, cause: NORMAL_TEMPORARY_FAILURE
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:60
> sofia/leia_agent/anonymous at anonymous.invalid Standard HANGUP, cause:
> NORMAL_TEMPORARY_FAILURE
> > fc1927a8-2257-400f-b4cb-67aff7297170 2015-05-20 00:00:22.636900 [DEBUG]
> switch_core_state_machine.c:737 (
> sofia/leia_agent/anonymous at anonymous.invalid) State HANGUP going to sleep
> >
>
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