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Re: [Sip] SIP backward compatibility issue
Early media was not specified in rfc2543. It did say that you should be
prepared to receive media before receiving the answer, which is still
the case for 3264. Another issue was that people used to put SDP in
non-reliable 1xx responses, and then put the same thing in 2xx. That
case is explicitly allowed for in 3261, so it should interoperate as well.
Perhaps you could identify the specific problem you are concerned about?
-Jonathan R.
Steve Levy wrote:
<snip>
rfc3261 is sufficiently backwards compatible with rfc2543. There is no
need to detect versions or anything. Any backwards compatibility
functions are built into specific features of rfc3261 that needed to
support backwards compatibility. If you just implement rfc3261 you
will be backwards compatible.
<snip>
broadening the discussion to rfc 3264 (offer/answer), isn't there a
potential for backward compatibility issues with rfc 2543
implementations wrt early media ?
thx,
steve
--
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
jdrosen@dynamicsoft.com FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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