[Serusers] mediaproxy feature request: immediate re-invite

Klaus Darilion klaus.mailinglists at pernau.at
Tue Sep 6 10:06:16 CEST 2005


If you have symmetric NAT, then this wont work (as you already said).

If you have less restictive NAT, you can use STUN so there is no need 
for a mediaproxy at all.

regards
klaus

Federico Giannici wrote:
> As I found no other support email address for mediaproxy, I'm sending 
> here this request...
> 
> Is it possible to implement an option in mediaproxy to allow an 
> IMMEDIATE RE-INVITE to both UAs as soon as the RTP streams start?
> 
> The idea is to use Mediaproxy only to find out the NATted RTP ports of 
> both UAs. Then a re-INVITE is immediately sent to the UAs so that the 
> streams are no longer proxied, avoiding all problems of RTP relaying: 
> waste of bandwidth, longer delays, bad scalability, etc.
> 
> I know this will not work with symmetric NATs, but I found that they are 
> relatively rare and anyway they will neither work with STUN...
> 
> 
> If anybody knows that this is theoretically impossible to implement, 
> please tell me that.
> 
> 
> Thanks.
> 




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