Refer to RFC 3261; section 10.2
From: The From header field contains the address-of-record of the
person responsible for the registration. The value is the
same as the To header field unless the request is a third-
party registration.
The below mentioned REGISTER is an example of self-registration.
I hope this helps.
Regards,
Gaurav
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Nithyakumar.R
Sent: Thursday, November 23, 2006 11:30 AM
To: [email protected]
Subject: [Sip-implementors] Register message From and TO
Hi All,
In Register message.. "To" and "From address" are same.It using contact
message to Repond back.Any reason behind this why "From" and "To address"
are same in register message..
Here From and To both are same..Pls clear my doubt.
REGISTER sip:10.18.6.223;Transport=udp SIP/2.0
To:<sip:[EMAIL PROTECTED];User=phone>
From:<sip:[EMAIL PROTECTED];User=phone>;tag=ED4D000000000000B7050B01
Contact:<sip:10.18.3.117:5061>
Expires:300
Call-ID:[EMAIL PROTECTED]
CSeq:1 REGISTER
Organization: XXXXX
Via:SIP/2.0/UDP 10.18.3.117:5061
User-Agent: XXXXUniphone1.0
Content-Length:0
With Regards,
Nithyakumar.R
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