I believe T.38 uses UDPTL instead of RTP. So you'd need support for it in mediaproxy for it to work.
Kristian Kielhofner wrote:
Daniel-Constantin Mierla wrote:
Hello,
you should not do anything special for t38, from proxy's point of view, does not matter the content of media stream. For the fax relaying, you should make sure that you handle re-INVITEs properly.
Cheers, Daniel
Daniel,
I'm having the same problems with T38, between a Sipura 2100 andCisco AS5350XM. Everything works quite well unless there is NAT. When the Sipura is behind NAT I can make voice calls but T38 faxing fails. Isn't a Re-Invite just an INVITE within an existing SIP session? What special configuration/processing does it require? I'm really curious about this...
Thanks!
-- Kristian Kielhofner
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