> -----Original Message----- > From: 'M. Ranganathan' [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 6:28 PM > To: [EMAIL PROTECTED] > Subject: [SIP] Extracting a call flow from a trace? > > > Hello and greetings! > > Hopefully, this message is not directed at the wrong mailing list! Indeed it is. Questions on SIP are directed to the sip-impelemtnors list. This is a question on SIP. > > As I understand it, SIP is a stateless protocol. That is false. SIP has plenty of state. SIP proxies can operate in a stateless mode, but that is not the same thing. If all the > messages from > a call flow are available to me from a set of log files that > are ordered, > would it be possible to deduce the call flow (i.e. causal sequences of > messages) from just looking at the message logs (with no additional > information than the SIP Messages themselves) or is further > information > required? Yes, it can be reconstructed. To, From, Call-ID, CSeq headers tell you call and transaction information. -Jonathan R. --- Jonathan D. Rosenberg 72 Eagle Rock Ave. Chief Scientist First Floor dynamicsoft East Hanover, NJ 07936 [EMAIL PROTECTED] FAX: (973) 952-5050 http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000 http://www.dynamicsoft.com _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
