[VoiceOps] Faxing over SIP - (88) INCOMPATIBLE_DESTINATION

[Fred Posner]

"This cause indicates that the equipment sending this cause has received 
a request to establish a call which has low layer compatibility, high 
layer compatibility or other compatibility attributes (e.g. data rate) 
which cannot be accommodated."

--fred

On 11/28/16 1:18 PM, Nathan Anderson wrote:
> What specifically is displaying "(88) INCOMPATIBLE_DESTINATION"?  That's not a normal SIP message.  Is this Zoiper that shows this?  Freeswitch?  Kamailio?  The gateway?
>
> What you really need is a packet capture of the SIP conversation that is happening between the entity throwing that error and whatever it is INVITEing.  So if Zoiper is displaying that message, make a capture of the signalling between Zoiper and Freeswitch.  It will certainly supply you with some clues about what is going on...
>
> -- Nathan
>
> From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Tanguy Dangelser
> Sent: Sunday, November 27, 2016 8:46 PM
> To: voiceops at voiceops.org
> Subject: [VoiceOps] Faxing over SIP - (88) INCOMPATIBLE_DESTINATION
>
> Hi,
>
> I know that faxing over SIP can be source of a whole lot of issues, but I am wondering if someone had the same that I am currently running into.
>
> I have a softphone (Zoiper) sending a fax (TIFF image sent to a physical fax on PSTN) through a SIP platform with freeswitch / kamailio which is forwarding the fax to my PSTN Gateway (telcobridges TMG800), the fax is detected as T38 and everything looks good, except that it ends with (88) INCOMPATIBLE_DESTINATION
>
> Does anyone has an idea what might cause this and what could help resolve the issue ? I can send the trace if you email me. Any help appreciated.
>
> Thank you,
>
> Tanguy
>
> --
>
> [http://www.guyacom.net/wp-content/uploads/2015/02/logoSignature-150x124.png]Tanguy DANGELSER
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