[SIPForum-discussion] Invite without Registration

[Santosh Iyer]

Yes that is correct, UAC can send invite to UAS without REG. It is peer to peer scenario as in one service provider sending traffic to another as per terms that would have been laid out in an agreement. REGISTRATIONs are needed more in say residential scenario where the phone declares that its exists at a certain IP through the REGISTRATION message. That way the service provider can deliver the calls back to the phone.

--- On Thu, 5/3/12, Gopalakrishnan N <saigop at gmail.com> wrote:

From: Gopalakrishnan N <saigop at gmail.com>
Subject: [SIPForum-discussion] Invite without Registration
To: discussion at sipforum.org
Date: Thursday, May 3, 2012, 5:41 AM

Can UAC invite UAS without registration? Is it something like peer to peer? any call flow is there?

-- 
Thank you  with regards,
Gopalakrishnan A.N.VoIP call - sip:saigop at gtalk2voip.com







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