[SIPForum-discussion] clarification on contact header

Halit Sakca sakcahalit at hotmail.com
Sun Jul 29 11:14:49 UTC 2007

Hi Andrew,
As far as I know about the Contact header is, when SBC sends a request to Redirect server it founds the related proxy and turns back to SBC with contact header (f.e in 302) that contains the IP address of this Element.
It is clear that with contact header info, related element directly send respond to this element (could be element or UA)
hope its helpful,

> Date: Sat, 28 Jul 2007 01:43:20 +0800> From: andrew at asiatel.com.sg> To: discussion at sipforum.org> Subject: [SIPForum-discussion] clarification on contact header> > Dear members,> > I'm some difficulties on understanding the purpose of the contact > header. Please advice what role does it play and how it is different > when compared with the FROM header? and why is that contact header is > not mandatory in all SIP requests as described in 8.1.1 RFC3261. Thank you.> > -- > Cheers,> > Asiatel Singapore Pte Ltd> Andrew Yu> > 19 Jalan Kilang Barat> #06-01, Acetech Centre> Singapore 159361> > Tel: +65 6271 8233> Fax: +65 6274 4266> > _______________________________________________> This is the SIP Forum discussion mailing list> TO UNSUBSCRIBE, or edit your delivery options, please visit http://sipforum.org/mailman/listinfo/discussion> Post to the list at discussion at sipforum.org
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