Hi Anshuman, sent-by is not a parameter of the Via header, but a mandatory part.
E.g. "Via SIP/2.0/UDP host.example.com;branch=xxxx" In the above example, "host.example.com" is the sent-by value Consequently, if there is no sent-by value the Via header is malformed, and the request should cause a BAD-REQUEST response Regards, Jeroen ----- Original Message ----- From: "Anshuman Rawat" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, April 17, 2006 12:42 PM Subject: [Sip-implementors] Matching Requests to Server Transactions > Hi All, > > I have a question regarding matching server transactions. I tried to > google for the problem but couldn't find the answer. > > Section 17.2.3 says > > "The request matches a transaction if: > > 1. the branch parameter in the request is equal to the one in the > top Via header field of the request that created the > transaction, and > > 2. the sent-by value in the top Via of the request is equal to the > one in the request that created the transaction, and > > 3. the method of the request matches the one that created the > transaction, except for ACK, where the method of the request > that created the transaction is INVITE. > " > > My question is - if the top VIA header does not have a 'sent-by' > parameter, what happens to the transaction matching procedure? Is step 2 > ignored in such a case? > > > TIA, > Anshuman > > > > > > ********************** Legal Disclaimer **************************** > "This email may contain confidential and privileged material for the sole > use of the intended recipient. Any unauthorized review, use or > distribution by others is strictly prohibited. If you have received the > message in error, please advise the sender by reply email and delete the > message. Thank you." > ********************************************************************** > > > _______________________________________________ > 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
