Hi, In RFC 3262, the following snippet is found:
<Quote> The PRACK request plays the same role as ACK, but for provisional responses. There is an important difference, however. PRACK is a normal SIP message, like BYE. As such, its own reliability is ensured hop-by-hop through each stateful proxy. Also like BYE, but unlike ACK, PRACK has its own response. If this were not the case, the PRACK message could not traverse proxy servers compliant to RFC 2543 [4]. </Quote> Could any of the members explain about the last statement: If this were not the case, the PRACK message could not traverse proxy servers compliant to RFC 2543 [4]. thanks PV _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
