[Freeswitch-users] hangup error missing remote port

Tue Oct 4 14:51:39 MSD 2011

Hi Allan,

 I am having the same problem with back to back FS boxes, I am also getting
port '0' sent in the m= SDP, in my case it is sent in the 183 SDP.

 Did you get to the bottom of the issue?

Thanks,

Michael

On Sun, Sep 4, 2011 at 6:44 AM, Allan Piske <zyryznet at gmail.com> wrote:

> Hi,
>
> I'm having some trouble discovering the source and solution to one problem.
>
> I setup a FS box for receiving faxes, and a already have another FS box as
> SBC.
>
>
> SPA3102   ---> opensips ---> FS_SBC --> opensips --> FS_FAX
> this works ok, call gets answered, i hear the fax tone, the SPA3102 changes
> to T38 and everyone is happy.
>
>
> Nortel CS2000   ------> FS_SBC -------> opensips(regitrar,rtpproxy,etc)
> ---> FS_FAX
> but his doen't.
>
> This little devil CS2000 sends every invite with m=image header along with
> m=audio. With aparently FS doesn't like.
>
>
> like that:
>
> freeswitch at internal> recv 1215 bytes from udp/[10.143.82.250]:5060 at
> 08:26:08.226858:
>    ------------------------------------------------------------------------
>    INVITE sip:4730365302 at 10.143.82.253:5060;transport=UDP;user=phone
> SIP/2.0
>    Record-Route:
> <sip:10.143.82.250;lr=on;ftag=-45026-10d9cdb-2668a317-10d9cdb>
>    f: <sip:4784064435 at 10.150.65.16:5060
> ;user=phone>;tag=-45026-10d9cdb-2668a317-10d9cdb
>    t: <sip:4730365302 at 10.143.82.250:5060;user=phone>
>    i: 416cf3e01041960a13c410d9cdb1d2cba42b82409c10f14bb8-0322-4481
>    CSeq: 1 INVITE
>    User-agent: CS2000_NGSS/9.0
>    P-Asserted-Identity: <sip:4784064435 at 10.150.65.16;user=phone>
>    Allow:
> ACK,BYE,CANCEL,INVITE,OPTIONS,INFO,SUBSCRIBE,REFER,NOTIFY,PRACK,UPDATE
>    Via: SIP/2.0/UDP 10.143.82.250;branch=z9hG4bK1d78.5262ccd1.0
>    v: SIP/2.0/UDP
> PAE1CS2K:5060;maddr=10.150.65.16;branch=z9hG4bK-10d9cdb-1d2cba43-57ebb21d
>    Max-Forwards: 69
>    m: <sip:10.150.65.16:5060;transport=UDP>
>    k: 100rel
>    c: application/sdp
>    l: 420
>
>    v=0
>    o=PVG 1315110636830 1315110636830 IN IP4 10.152.204.202
>    s=-
>    p=+1 6135555555
>    c=IN IP4 10.152.204.202
>    t=0 0
>    m=audio 55920 RTP/AVP 18 8 101
>    a=rtpmap:101 telephone-event/8000
>    a=fmtp:101 0-15
>    a=ptime:20
>    a=fmtp:18 annexb=no
>    m=image 64112 udptl t38
>    a=T38FaxVersion:0
>    a=T38FaxMaxBuffer:1100
>    a=T38FaxMaxDatagram:612
>    a=T38MaxBitRate:14400
>    a=T38FaxRateManagement:transferredTCF
>    a=T38FaxUdpEC:t38UDPRedundancy
>
> But then we have a problem ...
>
>
>
>
> My beloved FS_SBC changes the SDP before sending it to the next hop .. as
> it should becase they are on diferent subnets and set to proxy_media
>
> 2011-09-04 01:26:08.231102 [DEBUG] sofia_glue.c:1759 sofia/tpa/4730365302
> Patched SDP
> ---
> v=0
> o=PVG 1315110636830 1315110636830 IN IP4 10.152.204.202
> s=-
> p=+1 6135555555
> c=IN IP4 10.152.204.202
> t=0 0
> m=audio 55920 RTP/AVP 18 8 101
> a=fmtp:18 annexb=no
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=ptime:20
> m=image 64112 udptl t38
> a=T38FaxVersion:0
> a=T38FaxMaxBuffer:1100
> a=T38FaxMaxDatagram:612
> a=T38MaxBitRate:14400
> a=T38FaxRateManagement:transferredTCF
> a=T38FaxUdpEC:t38UDPRedundancy
>
> +++
> v=0
> o=FreeSWITCH 2718891449 2718891450 IN IP4 A.B.C.D
> s=FreeSWITCH
> p=+1 6135555555
> c=IN IP4 A.B.C.D
> t=0 0
> m=audio 19262 RTP/AVP 18 8 101
> a=fmtp:18 annexb=no
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=ptime:20
> m=image 19262 udptl t38
> a=T38FaxVersion:0
> a=T38FaxMaxBuffer:1100
> a=T38FaxMaxDatagram:612
> a=T38MaxBitRate:14400
> a=T38FaxRateManagement:transferredTCF
> a=T38FaxUdpEC:t38UDPRedundancy
>
>
> so we have now  2  m=   fields with the same port !!!!!
>
> then when it gets answered on the FS_FAX box .. we got disconnection on the
> FS_SBC box
>
>
> 2011-09-04 01:26:08.257064 [DEBUG] sofia.c:4761 Channel
> sofia/tpa/4730365302 entering state [completing][200]
> 2011-09-04 01:26:08.257064 [DEBUG] sofia.c:4772 Remote SDP:
> v=0
> o=FreeSWITCH 1315079202 1315079203 IN IP4 189.45.192.19
> s=FreeSWITCH
> c=IN IP4 189.45.192.19
> t=0 0
> m=audio 31436 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16
> a=silenceSupp:off - - - -
> a=ptime:20
> m=image 0 udptl 19
>
> 2011-09-04 01:26:08.258409 [DEBUG] sofia.c:4761 Channel
> sofia/tpa/4730365302 entering state [ready][200]
> 2011-09-04 01:26:08.258409 [DEBUG] switch_channel.c:2830
> (sofia/tpa/4730365302) Callstate Change RINGING -> ACTIVE
> 2011-09-04 01:26:08.258409 [DEBUG] switch_channel.c:2842 Send signal
> sofia/voxip/4784064435 at 10.150.65.16:5060 [BREAK]
> 2011-09-04 01:26:08.258409 [NOTICE] sofia.c:5318 Channel
> [sofia/tpa/4730365302] has been answered
> 2011-09-04 01:26:08.258409 [DEBUG] sofia_glue.c:2774 Set Codec
> sofia/tpa/4730365302 PROXY/8000 20 ms 160 samples 0 bits
> 2011-09-04 01:26:08.258409 [DEBUG] sofia_glue.c:3079 PROXY AUDIO RTP
> [sofia/tpa/4730365302] A.B.C.D:19262->W.X.Y.Z:0 codec: 0 ms: 20
> 2011-09-04 01:26:08.258409 [ERR] sofia_glue.c:3512 AUDIO RTP REPORTS ERROR:
> [Missing remote port]
> 2011-09-04 01:26:08.258409 [DEBUG] switch_channel.c:2563
> (sofia/tpa/4730365302) Callstate Change ACTIVE -> HANGUP
> 2011-09-04 01:26:08.258409 [NOTICE] sofia_glue.c:3513 Hangup
> sofia/tpa/4730365302 [CS_CONSUME_MEDIA] [DESTINATION_OUT_OF_ORDER]
> 2011-09-04 01:26:08.258409 [DEBUG] switch_channel.c:2579 Send signal
> sofia/tpa/4730365302 [KILL]
> 2011-09-04 01:26:08.258409 [DEBUG] switch_core_session.c:1116 Send signal
> sofia/tpa/4730365302 [BREAK]
>  2011-09-04 01:26:08.259605 [DEBUG] switch_ivr_originate.c:3299 Originate
> Resulted in Error Cause: 27 [DESTINATION_OUT_OF_ORDER]
> 2011-09-04 01:26:08.259605 [INFO] mod_dptools.c:2647 Originate Failed.
>  Cause: DESTINATION_OUT_OF_ORDER
>
>
> port = 0 !!!
>
> is that maybe a fault in opensips in the middle because the both m= fields
> with the same port ? , or one of the FS boxes ?
> something is broken here, sadly :(
>
> Appreciate any help.
>
> Allan
>
>
>
>
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