Hi All,

We have a SipXecs 4.4.0- 2011-05-10EDT22:48:21. Incoming calls from one 
particular operator on a SIP trunk fail.
Further analyses has shown that the call is ended from the operators side 
(Tele2), after the 200 OK on the INVITE is sent from the SIPX
In the 200 OK there is in the SDP a line with  with:

m=image 0 UDPTL 19

which seems to cause the problem. As far as my knowledge stretches, this is a 
proper and allowed way to tell that (T.38?) is not supported on the call, port 
=0 after all....

Just to keep thing down to earth: is there a way to make SipXecs NOT send this  
line?
In fact the operator in question should correct its behavior, but that may take 
a long time.....
I have attached the pcap.

Kind Regards,

Peter van der Salm

Attachment: 3cf59c284002620a13c41378945c0f035d3f6dc80a13d465b0-0026-6332.pcap
Description: Binary data


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