[Users] Mediaproxy with t38

[Kristian Kielhofner]

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 and Cisco 
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