In Section 7.3.3 of bis02, 2 approaches are presented for redirection when a
302 Moved Temporarily response is received.
The first approach, re-using the same Call-Id and Cseq is mandated for
proxies but not for UACs.
The second approach, for UACs only, allow the use of a new Call-Id. (In
addition, UACs MAY replace the TO with the Contact in 302)
Question 1: Why is this specified only for 302? Would not the same rules
apply for 300, 301, 302, 305? ie. Proxies MUST use the same Call-id (and
FROM, TO,CSEQ) and UACs MAY.
Question 2: Which approach is preferred by UAC implementers? What are the
pros and cons of the 2 approaches for UACs?
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