From: mohammad Sent: Sunday, September 26, 2004 6:46 AM

Can anybody explain what exactly is "stateful proxy"?

A stateful proxy operates on transaction basis. In contrast a stateless proxy only forwards request and responses without e.g. recognizing retransmissions.

I read the ser related documents about that topic but I have not understood very well

I recommend you should look at some white papers (the RFC might be to hard to begin with) at http://www.sipforum.org/modules.php?name=Whitepapers

- franz