"Richard" <[EMAIL PROTECTED]> asks
>
> Do we need to consider the 2543 compliance in coding sipstack right
> now? More specifically, null to-tag in 200ok response or null from-tag
> in INVITE. Thanks in advance.
RFC 3261 was designed to be backwards compatible with RFC 2543, and mentions
those parts of RFC 2543 which one needs to consider. For example, in section
17, where we have snippets like
This is a change from RFC 2543, where responses were always
retransmitted, even over reliable transports.
and
If the branch parameter in the top Via header field is not present,
or does not contain the magic cookie, the following procedures are
used. These exist to handle backwards compatibility with RFC 2543
compliant implementations.
frank
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