[SIPForum-discussion] Call Forwarding

RAMASAMY, KESAVAN (KESAVAN)** CTR ** kesavan.ramasamy at alcatel-lucent.com
Wed Aug 24 05:09:37 UTC 2011


>From my point of view we will have User-B in To header.

Because this is the only way that User C can identify the call is forwarded from User-B.

Kesavan R

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Gopalakrishnan A.N
Sent: Tuesday, August 23, 2011 10:55 PM
To: Aysegul Donmez
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] Call Forwarding

If i am not wrong. In the forwarded invite the To header will be C's user address. Any other inputs would be appreciated.

On Tue, Aug 23, 2011 at 8:11 PM, Aysegul Donmez <aysdonmez at yahoo.com<mailto:aysdonmez at yahoo.com>> wrote:


At the call forwarding scenario:

User-A calls User-B. User-B forwards all incoming calls (call forwarding unconditional) to User-C.

First the INVITE message contains:

 *   Request URI: User-B
 *   To: User-B
 *   From: User-A
Then it changes to

 *   Request URI: User-C
 *   To: User-B or User-C
 *   From: User-A
 *   Diversion header: User-B

My question is does "To header" of the changed INVITE contains the forwarded user's number(User-C) of the called number(User-B)?

Thanks very much for your help,


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Thank you  with regards,
Gopalakrishnan A.N.
VoIP call - sip:saigop at gtalk2voip.com<mailto:sip%3Asaigop at gtalk2voip.com>

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