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

Sharath Kumar Sharath.Kumar at meZocliq.com
Wed May 27 23:12:35 MSD 2015 

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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto:mike at jerris.com>> wrote:
session timer


On Tuesday, May 19, 2015, Oleg Stolyar <olegstolyar at gmail.com<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto: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<mailto:sofia/leia_agent/anonymous at anonymous.invalid>) State HANGUP going to sleep
>

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