Thread: [OpenSBC] Support for UDPTL (as used for T.38)?

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I couldn't find any mention of it, but does OpenSBC currently support proxying UDPTL media?

Sorry, no OpenSBC does not support proxying of T.38.  If you send T.38 via 
OpenSBC, it will not modify the m line for T.38 media.  This would result to 
audio/video only proxy while T.38 remains end-to-end.

Joegen

>
> I couldn't find any mention of it, but does OpenSBC currently support 
> proxying UDPTL media?
>

Too bad. We might try to add it. Is there anything we should know?

--Eric 

Your contribution to this project would be much welcome.  For starters, you 
should be looking at three important objects in OpenSIPStack if you are to 
implement T.38 proxy in OpenSIPStack.  They are RTP_SessionManager, RTP_UDP 
and B2BMediaInterface .   Each B2BUACall has an RTP_SessionManager of it's 
own which maintains the RTP_UDP session responsible for each leg while 
B2BMediaInterface is the central location where parsing of the SDP Offer and 
Answer is done.  You can simply base your T38_SessionManager and T38_UDP 
classes from their RTP counterparts and modify B2BMediaInterface to parse 
T.38 m line as well.

HTH

Joegen

>
> Too bad. We might try to add it. Is there anything we should know?
>

Thread: [OpenSBC] Support for UDPTL (as used for T.38)?

opensipstack-osbcdevel