[Freeswitch-users] INCOMPATIBLE_DESTINATION

[Brian West]

it actually is probably fax related since the initial invite has T.38 stuff
in it, I bet its getting tripped up because T.38 is a NO GO REJECT and it
probably says something to that in the debug logs.

/b


On Wed, Aug 22, 2018 at 3:15 PM, Paul Muaddib <paul.muaddib83 at gmail.com>
wrote:

> Hi,
>
> It is definitely not a Fax. The guys, who are calling us from this number,
> are actually complaining that we are not reachable. But when we call them
> back the voice call perfectly works. Other Inbound calls are no problem.
>
> Best regards,
> Paul
>
> Am Mi., 22. Aug. 2018 um 21:53 Uhr schrieb Vallimamod Abdullah <
> vma at vallimamod.org>:
>
>> Hi,
>>
>> When there is udptl media type in sdp, freeswitch ignores the audio type.
>> That's why you are getting the codec error (if you don't have t38 enabled.)
>> The caller looks like a fax machine, which explains why you get a direct
>> t38 request and not a reinvite.
>>
>>
>> Best Regards,
>> --
>> Vallimamod Abdullah
>> SIP Solutions
>> vma at sip.solutions
>> linkedin.com/in/vallimamod
>> .
>>
>> On 22 Aug 2018, at 15:55, Paul Muaddib <paul.muaddib83 at gmail.com> wrote:
>>
>> vars.xml
>>
>>   <X-PRE-PROCESS cmd="set" data="global_codec_prefs=PCMA,PCMU"/>
>>   <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=PCMA,PCMU"/>
>>
>> My phones, all Grandstream GXP2140, accept PCMA and PCMU
>>
>> I don't have trouble with other people calling me
>>
>> Am Mi., 22. Aug. 2018 um 15:21 Uhr schrieb Thorsten Göllner <
>> tg-maillistings at level5.de>:
>>
>>> Only PCMA at 8000 is offered. Check device if codec is activated.
>>>
>>> Am 21.08.2018 um 15:06 schrieb Paul Muaddib:
>>>
>>> Hi,
>>>
>>> I have a rarely error where I get this failure message in the log file.
>>> I am bit wondering because this is suposed to be a normal voice call and
>>> not a fax.
>>>
>>> Best regards,
>>> Paul.
>>>
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 2018-08-20 14:04:54.056776 [INFO]
>>> switch_ivr_originate.c:1215 Sending early media
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 2018-08-20 14:04:54.056776 [ERR]
>>> mod_sofia.c:2343 CODEC NEGOTIATION ERROR.  SDP:
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 v=0^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 o=- 20012711 20012711 IN IP4
>>> 217.0.15.67^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 s=on transit^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 c=IN IP4 X.X.X.X^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 t=0 0^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 m=audio 13274 RTP/AVP 8 118 126
>>> 101^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=rtpmap:8 PCMA/8000^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=rtpmap:118 PCMA/8000^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=rtpmap:126 CLEARMODE/8000^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=rtpmap:101 telephone-event/8000^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=fmtp:101 0-15^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=gpmd:118 vbd=yes^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=ptime:20^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 m=image 11232 udptl t38^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38FaxVersion:0^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38MaxBitRate:14400^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38FaxMaxBuffer:3000^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38FaxMaxDatagram:500^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38FaxRateManagement:
>>> transferredTCF^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 a=T38FaxUdpEC:t38UDPRedundancy^M
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28
>>> fe3eed7c-e03a-40af-bc2e-ae0bfe54bb28 2018-08-20 14:04:54.056776
>>> [NOTICE] switch_channel.c:3515 Hangup sofia/external/+49XXXXXXXXX@
>>> sip-trunk.telekom.de [CS_EXECUTE] [INCOMPATIBLE_DESTINATION]
>>>
>>>
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>
>
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>
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>
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-- 

Brian West | Co-founder and Developer

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