Re: [Sip-implementors] Doubt About Prack.....

2009-01-18 Thread Rohit Aggarwal
Hi If you intended to ask whether UAS can send another reliable provisional response before receiving PRACK for the previous one, the answer is negative. Following text on Pg 5 of RFC 3262 will help: After the first reliable provisional response for a request has been acknowledged, the U

[Sip-implementors] FW: Regarding Refer-To header

2009-01-18 Thread harbhanu
Hi, For all the headers defined in 3261, which are obtained from ( name-addr / addr-spec ), we have a rules saying that the values must be wrapped with '<' and '>', incase addr-spec contains any of comma, semi-colon or question mark. For example, statement fro 'From' header field: "Even

[Sip-implementors] Doubt About Prack.....

2009-01-18 Thread Radha Krishna
Hi, Can anyone pls clarify the following call flow doubt? UAC UAS --INV---> STEP1 <-100--- STEP2 <-180(with 100rel) - Rseq: 1 STEP3