Hi
There are parameters which are SIP Header specific. For example:
to-param = tag-param / generic-param
from-param = tag-param / generic-param
info-param = ( "purpose" EQUAL ( "icon" / "info"
/ "card" / token ) ) / generic-param
auth-param = auth-param-name EQUAL
( token / quoted-string
Such parameters are not allowed in Request URI.
Therefore if included in the Request URI of a message as unknown parameters
then these should be ignores while the copying the Request URI of the target in
case of Request Forwarding.
Regards
Anuradha Gupta
Technical Leader
A R I C E N T
The Presidency Tower - A
351/2, Sector-14, M.G.Road,
Gurgaon -122001. Haryana (India)
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Mobile : 9811814731
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rockson Li
(zhengyli)
Sent: Thursday, August 21, 2008 11:40 AM
To: [email protected]
Subject: [Sip-implementors] which parameter is not allowed in Req-URI
Hi folks,
RFC3261
16.6 Request Forwarding
2. Request-URI
The Request-URI in the copy's start line MUST be replaced with
the URI for this target. If the URI contains any parameters
not allowed in a Request-URI, they MUST be removed.
But I don't see which parameter(s) is/are not allowed in Req-URI,
Since as per BNF below, it looks like all SIP-URI / SIPS-URI /
absoluteURI is ok for Req-URI
SIP-URI = "sip:" [ userinfo ] hostport uri-parameters [
headers ]
uri-parameters = *( ";" uri-parameter)
uri-parameter = transport-param / user-param / method-param
/ ttl-param / maddr-param / lr-param / other-param
Request-URI = SIP-URI / SIPS-URI / absoluteURI
Could anybody clarify please?
Thanks
-Rockson
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