[Sip-implementors] Timestamp in PRACK

[Arunachalam Venkatraman]

The 100-rel draft’s 03 version has this additional line (compared to 02) in section 6.1, that puzzles me –   If the provisional response contained a Timestamp    header, this is copied into the PRACK.     As per rfc2543bis-02 Section 6.43.   The Timestamp general-header field describes when the client sent the    request to the server. The value of the timestamp is of significance    only to the client and it MAY use any timescale. The server MUST echo    the exact same value and MAY, if it has accurate information about    this, add a floating point number indicating the number of seconds    that have elapsed since it has received the request.  The timestamp    is used by the client to compute the round-trip time to the server so    that it can adjust the timeout value for retransmissions.     Question:   if the Timestamp is of interest only to the UAC (which sent the INVITE) and it has received the value in a provisional response from the server, why is this to be copied into the PRACK?     _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors