[SIPForum-discussion] Processing request Request-URI and To URI

[Banda, Srinivas (Srinivas)]

Hi Parasuraman,

Yes Request-URI with sip:domain.com and To URI with sip:user at domain.com is a valid one.
One Example is REGISTER message.

Regards
Srinivas

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Kumarasami Parasuraman-QXVB36
Sent: Tuesday, May 28, 2013 7:40 PM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Processing request Request-URI and To URI


Hi,

Is anywhere in the RFC said Processing / generating Request, Request-URI and To URI should be same.

While processing request Request-URI has, sip:domain.com and To URI has, sip:user at domain.com. Is the UAS can reject the request with 403 Forbidden.

Please clarify me.

As per the RFC3261(Character Escaping Requirements) ,  User part is optional in both Request-URI and To URI.

19.1.2 Character Escaping Requirements

                                                       dialog
                                          reg./redir. Contact/
              default  Req.-URI  To  From  Contact   R-R/Route  external
user          --          o      o    o       o          o         o
password      --          o      o    o       o          o         o
host          --          m      m    m       m          m         m
port          (1)         o      -    -       o          o         o
user-param    ip          o      o    o       o          o         o
method        INVITE      -      -    -       -          -         o
maddr-param   --          o      -    -       o          o         o
ttl-param     1           o      -    -       o          -         o
transp.-param (2)         o      -    -       o          o         o
lr-param      --          o      -    -       -          o         o
other-param   --          o      o    o       o          o         o
headers       --          -      -    -       o          -         o

Thanks

Regards,
Parasu

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