Hi all,
I had a query regarding the latest Reliable Provisional Responses
draft. The earlier version (that is: 100rel-04, before 100rel made
its brief visit to the bis-RFC :) had text stating:
"Since reliable provisional responses MAY contain Record-Route headers
(if the request was an initial INVITE, for example), the PRACK
request MUST contain Route headers according to the procedures
specified in [1], as if the PRACK were a BYE. The Route header that
is constructed from some provisional response MUST NOT be placed in
any other request except for a PRACK for all provisional responses
with the same tag in the To field. For reliable provisional responses
to a request that contained Route headers, the PRACK MUST contain the
same Route headers as the request."
The latest draft is silent with respect to the routing of PRACK(s)
for a call-leg. My doubts are:
a. Does this text remain the same now and has been skipped by mistake?
b. If yes, why does the Route set created by 1xx for a call-leg not
hold after the call setup is completed? (Using it only
for PRACKs within this call leg seems to indicate this...
or am I missing something here?)
Please give me a pointer to any previous discussion in which this
has been resolved if this is a repeat query.
Thanks in advance.
Regards,
Siddharth.
------------------
Siddharth Toshniwal @ Hughes Software Systems.
http://www.hssworld.com
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