Raúl Alexis-
On Friday 23 October 2009 16:01:41 Jeff Brower wrote:
Klaus-
So you want to do transcoding in rtpproxy using a DSP card? I do not know - better ask on the rtpproxy mailing list (or Maxim directly - I think he has a non-open source solution).
Ya we have -- and it works, no problem. We've tested already with Kamailio
- rtpproxy.
It's possible to know witch DSP card are you using ?
http://www.signalogic.com/sigc5561_ptmc.htm
in PCI and PCIe formats.
But anyway my question is about SIP with Kamailio + Asterisk, not RTP. Is there a way that Kamailio can "pass thru" SIP messages from Asterisk? Or does each call have to be relayed; i.e Asterisk sets up a call to Kamailio, then Kamalio sets up a call to the endpoint?
Kamailio as SIP proxy, doesn't "setup a call", it just route SIP messages, so by definition it works as "SIP-Passthrought", so what is the problem you have ?
Well hopefully no problem and I'm a worry-wart :-) We're very sensitive to call setup and tear-down times... especially we're concerned about running Asterisk and Kamailio on the same server. Doing RTP stuff with a DSP card gives a huge increase in call capacity, but if we can't maintain fast setup and tear-down rates, then we defeat the purpose.
-Jeff
Raúl Alexis Betancor Santana Dimensión Virtual
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