[Users] two invites, different session description => broken

[Olle E Johansson]

30 nov 2006 kl. 11.00 skrev Bogdan-Andrei Iancu:

> Hi Olle,
>
> even if the devices register with OpenSER and you use Asterisk as  
> B2BUA behind the proxy, it still works if:
>    1) handle SIP signalling NAT mangle in OpenSER
>    2) disable the can-reinvites option in Asterisk.
>    3) do not use rtpproxy.
>
> From Asterisk perspective, do you see any issues in this scenario?

You need to add nat=yes in Asterisk to turn on Symmetric RTP. The  
problem then is that Asterisk will
also enable symmetric SIP, which might hurt communication when using  
a proxy.

The rtp-proxy is only needed for devices that call between each other  
and need nat support.
For calls to and from Asterisk, yes, Asterisk can handle most of it  
in the way you describe it.


/O