>>as the NETWORK SERVER (PROXY) whenever receives 18XX response it has to >>immediately proxy it, can any one explain here what is meant by *proxy the >>18XX response.*
"proxy the response", means it has to forward the response. And "forward the response" means it has to do whatever processing is necessary (such as removing a Via header) and then pass the message on to somewhere else (it might get passed to a UA or another proxy). >>it has to immediately proxy it (it says immediately, because in some cases you don't always forward the message immediately - for example, if a proxy is doing forking, in some cases it will wait for the most suitable response before forwarding it) Regards, Attila -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of jafer sharif mohammed Sent: 14 December 2006 11:50 To: [email protected] Subject: [Sip-implementors] Parsing Hi, I have one elementary question, when UAC wants to establish a session he has to send INVITE message, so here my question is building up of INVITE message is said to be parsing, so can we say this to be encoding because here the structures written will be filled up by respective values, and once message gets construct it will be placed in buffer to hand over to TCP/UDP, so can we say all this process to be parsing. When any SIP message is received by say PROXY, it has to decode the message and has to take action depending up on the message. As the bottom most layer of SIP protocol does Parsing and Encoding of message. Is there any difference between Parsing and Encoding or both are same. Can we say that Parsing happens when message is sent, and decoding happens when message is received. Please correct me if I am wrong, and send me feedback to get exact understanding. Else give me exactly what happens at bottom most layer of SIP Protocol. As we know that proxy will route the request to respective destination, here I am confused that as I read in one document stating that, as the NETWORK SERVER (PROXY) whenever receives 18XX response it has to immediately proxy it, can any one explain here what is meant by *proxy the 18XX response.* I am eagerly waiting for reply. Thanks & Regards. Sharif. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
