[Freeswitch-users] SDP With T.38 in INVITE Problem

Mon Feb 22 07:29:22 PST 2010

if you want to see what is going on, crank up the debug in freeswitch and
sofia and you should see exactly what is going on.

Mike

On Mon, Feb 22, 2010 at 10:11 AM, ivdreg ivdreg <ivdreg at gmail.com> wrote:

> Hi Michael,
>
> This happens when ONLY IF initial INVITE is coming with T.38 from a GW
> (this is ITSP equipment and I don't know vendor) to our SIP subscribers with
> ATCOM ATA and IP Phone. We use now in production YATE for terminating and
> originating GWs to ITSPs and FS as main routing logic (backend). We want to
> switch YATE to FS for a GW also but we faced this problem. This not happens
> if initial INVITE nave no T.38 offered and later re-INVITE with T.38 with
> valid SDP port.
>
> Thanks
>
> 2010/2/22 Michael Jerris <mike at jerris.com>
>
>> If the endpoint does not correctly follow the sdp o/a model its not going
>> to work.  This is not a "problem" with the sofia library, this is intended
>> behavior and what we are supposed to do.  What is the device?
>>
>> Mike
>>
>> On Feb 22, 2010, at 7:48 AM, ivdreg ivdreg wrote:
>>
>> Hi All,
>>
>> Actually while seeking the solution in internet I see some people having
>> this problem with sofia library. I'm not sure that SIP reply in this case
>> contains a valid SDP (I think that teminating endpoint is broken) but in my
>> opinion if we have at least one valid media type in SDP (video, audio, image
>> ...) call must be established. Can someone comment and/or help me with this
>> issue.
>>
>> Regards.
>>
>> 2010/2/19 ivdreg ivdreg <ivdreg at gmail.com>
>>
>>> Hi all,
>>>
>>> Dose someone have a problem that if there T.38 in coming from gateway
>>> FreeSwitch drops the call because of media error ? As I see from log only
>>> T.38 port is zero and SDP has also media port. Is it possible to configure
>>> FS to do not break a call but if media is OK.
>>>
>>> 2010-02-19 12:26:14.305244 [NOTICE] switch_channel.c:666 New Channel
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065[6cd9f634-411d-df11-99ca-003048bb99cc]
>>> 2010-02-19 12:26:14.305244 [DEBUG] mod_sofia.c:3369 (sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065) State Change CS_NEW -> CS_INIT
>>> 2010-02-19 12:26:14.305244 [DEBUG] switch_core_session.c:1018 Send signal
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 [BREAK]
>>> 2010-02-19 12:26:14.305244 [DEBUG] switch_core_state_machine.c:314
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) Running State Change CS_INIT
>>> 2010-02-19 12:26:14.305244 [DEBUG] switch_core_state_machine.c:338
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) State INIT
>>> 2010-02-19 12:26:14.305244 [DEBUG] mod_sofia.c:83 sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065 SOFIA INIT
>>> 2010-02-19 12:26:14.305244 [DEBUG] sofia_glue.c:1377 sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065 Patched SDP
>>> ---
>>> v=0
>>> o=- 3779949069 5166785777234550622 IN IP4 206.132.232.212
>>> s=session
>>> t=0 0
>>> m=audio 21108 RTP/AVP 18 4 8 0
>>> c=IN IP4 10.10.1.110
>>> a=rtpmap:18 G729/8000
>>> a=rtpmap:4 G723/8000
>>> a=rtpmap:8 PCMA/8000
>>> a=rtpmap:0 PCMU/8000
>>> m=image 21108 udptl t38
>>> c=IN IP4 10.10.1.110
>>> a=T38FaxVersion:0
>>> a=T38MaxBitRate:14400
>>> a=T38FaxUdpEC:t38UDPRedundancy
>>> a=T38FaxRateManagement:transferredTCF
>>>
>>> +++
>>> v=0
>>> o=- 3779949069 5166785777234550622 IN IP4 206.132.232.212
>>> s=session
>>> t=0 0
>>> m=audio 17058 RTP/AVP 18 4 8 0
>>> c=IN IP4 10.10.1.100
>>> a=rtpmap:18 G729/8000
>>> a=rtpmap:4 G723/8000
>>> a=rtpmap:8 PCMA/8000
>>> a=rtpmap:0 PCMU/8000
>>> m=image 17058 udptl t38
>>> c=IN IP4 10.10.1.100
>>> a=T38FaxVersion:0
>>> a=T38MaxBitRate:14400
>>> a=T38FaxUdpEC:t38UDPRedundancy
>>> a=T38FaxRateManagement:transferredTCF
>>>
>>> 2010-02-19 12:26:14.305244 [DEBUG] mod_sofia.c:117 (sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065) State Change CS_INIT -> CS_ROUTING
>>> ......
>>> 2010-02-19 12:26:21.255201 [DEBUG] sofia.c:4135 Remote SDP:
>>> v=0
>>> o=FreeSWITCH 1266548331 1266548332 IN IP4 10.10.1.110
>>> s=FreeSWITCH
>>> c=IN IP4 10.10.1.110
>>> t=0 0
>>> *m=audio 26850 RTP/AVP 8*
>>> a=rtpmap:8 PCMA/8000
>>> a=silenceSupp:off - - - -
>>> a=ptime:20
>>> *m=image 0 udptl 19*
>>>
>>> 2010-02-19 12:26:21.255201 [DEBUG] sofia.c:4124 Channel sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065 entering state [ready][200]
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_channel.c:2285 Send signal
>>> sofia/backend/YYYYYYYYYY at 10.10.1.110 [BREAK]
>>> 2010-02-19 12:26:21.255201 [NOTICE] sofia.c:4668 Channel [sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065] has been answered
>>> 2010-02-19 12:26:21.255201 [DEBUG] sofia_glue.c:2288 Set Codec
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 PROXY/8000 20 ms 160 samples
>>> *2010-02-19 12:26:21.255201 [DEBUG] sofia_glue.c:2571 PROXY AUDIO RTP
>>> [sofia/backend/XXXXXXXXXX at 10.10.1.110:7065] 10.10.1.100:17058->
>>> 10.10.1.110:0 codec: 0 ms: 20
>>> 2010-02-19 12:26:21.255201 [ERR] sofia_glue.c:2879 AUDIO RTP REPORTS
>>> ERROR: [Missing remote port]
>>> 2010-02-19 12:26:21.255201 [NOTICE] sofia_glue.c:2880 Hangup
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 [CS_CONSUME_MEDIA]
>>> [DESTINATION_OUT_OF_ORDER]*
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_channel.c:2063 Send signal
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 [KILL]
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_session.c:1018 Send signal
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 [BREAK]
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:314
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) Running State Change
>>> CS_HANGUP
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:499
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) State HANGUP
>>> 2010-02-19 12:26:21.255201 [DEBUG] mod_sofia.c:411 Channel sofia/backend/
>>> XXXXXXXXXX at 10.10.1.110:7065 hanging up, cause: DESTINATION_OUT_OF_ORDER
>>> 2010-02-19 12:26:21.255201 [DEBUG] mod_sofia.c:454 Sending BYE to
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:46
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 Standard HANGUP, cause:
>>> DESTINATION_OUT_OF_ORDER
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:499
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) State HANGUP going to sleep
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:333
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) State Change CS_HANGUP ->
>>> CS_REPORTING
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_session.c:1018 Send signal
>>> sofia/backend/XXXXXXXXXX at 10.10.1.110:7065 [BREAK]
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:314
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) Running State Change
>>> CS_REPORTING
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_ivr_originate.c:3185 Originate
>>> Resulted in Error Cause: 27 [DESTINATION_OUT_OF_ORDER]
>>> 2010-02-19 12:26:21.255201 [INFO] mod_dptools.c:2353 Originate Failed.
>>> Cause: DESTINATION_OUT_OF_ORDER
>>> 2010-02-19 12:26:21.255201 [DEBUG] switch_core_state_machine.c:590
>>> (sofia/backend/XXXXXXXXXX at 10.10.1.110:7065) State REPORTING
>>>
>>>
>>
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