Re: [sr-dev] [Kamailio-Users] Transparent bridge mode - sr-dev

24 Dec 2009

On 12/24/09 5:14 AM, Alex Balashov wrote:
...
  One of the impediments to using mediaproxy2 is that AG
does not seem 
 interested in maintaining or supporting long-term fundamental 
 compatibility with Kamailio/SR, as an OpenSIPS partisan.  Perhaps I am 
 mistaken on that, but that is the impression that I get.

 A good approach is likely to be possible soon in Kamailio 3.x/SR with 
 the use of the kernel-bound RTP proxy that was built into SER,

 I do not exactly know how well it works at this point, but seems to me 
 like a better approach if my perception of political difficulties with 
 mediaproxy2 is accurate:

 http://www.kamailio.org/docs/modules/3.0.x/modules/iptrtpproxy.html AFAIK
iptrtpproxy is very stable and deployed on some public voip 
services. Perhaps the authors can give more feedback (therefore I cc-ed 
sr-dev). I plan to start using it with Kamailio 3.0.

Along with this, I want to bring in attention another alternative, that 
opens the service to more media-oriented features (e.g., like in call 
audio messages): using a light weight media server in back-to-back user 
agent mode, like SEMS (of course it could be very-stripped-down config 
of asterisk or freeswitch). Network architecture would be:

[caller] ====== [kamailio] ====== [sems] ====== [kamailio] ====== [callee]

The over-all performances are comparable (when no transcoding happens) 
with today's cpu power.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
* http://www.asipto.com/