Juan J. Sierralta P. wrote:
On Mon, 2004-05-17 at 09:57, Olle E. Johansson wrote:
Ignace CARIA wrote:
Perhaps stupid question but, is Asterisk a statefull or stateless proxy?
Asterisk is a no-SIP-proxy-at-all :-)
Again: Asterisk is not a SIP proxy. A SIP proxy doesn't handle media streams and doesn't terminate or originate calls. Asterisk does.
Asterisk is a stateful SIP UAS (User Agent Server) or UAC (User Agent Client) that has some characteristics of a stateful SIP proxy, but in most cases no similarity at all.
Would be correct to say that * SIP channel is a B2BUA plus it handle the media stream ?
Yes, a B2BUA handles the media stream, so you are 100% correct. I forgot that part of the SIP terminology :-)
I would like to add that even though Asterisk from a SIP proxy standpoint is a bit limited, it's a very clever B2BUA for connections to the PSTN as well as other VOIP protocols. If someone adds IPv6 connectivity, we'll be a really wonderful IPv4 to IPv6 VoIP gateway as well.
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