[SIPForum-discussion] Example of SIP Registration with multiple contacts

[Karan Thakur]

Hi Pushpa

Thanks for respone.
Indeed it will be a intriguing to understand such scenario.
But the scenario you mentioned above will have 181 Forwarding involved.( I
Believe)

--> Invite (For desk phone)
<-- 180 Ringing
<-- 181 forwarded (will contact Cell phone contact) // But remember there
will be only 1 contact.
          ----> Invite to cellphone

or another scenario could be possible
--> Invite to User
<--- 3xx (with multiple contacts. It could be possible that One AOR is
mapped to multiple contacts)
   ----> Invite to Contact1: AOR
       -----------> Invite to Contact2: AOR
depending upon type of forking used (Sequential or Parallel.)

But my query is for Registration case. Just want to know some real time
scenario where a device can send multiple contacts for same AOR.






On Fri, Jun 28, 2013 at 10:21 PM, Mirchandani, Pushpa <
Pushpa.Mirchandani at charter.com> wrote:

> Hi,****
>
> ** **
>
> Shouldn’t this scenario apply when we have follow me activated in the
> voicemail?  For example if the call rings at the desk phone but has follow
> me, will it not show the second contact as being the cell phone contact?
> Just a thought.  I am curious to know as well.  ****
>
> ** **
>
> Either that the second contact may show in the re-INVITE message.   Thanks
> ****
>
> ** **
>
> Pushpa****
>
> ** **
>
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *Karan Thakur
> *Sent:* Friday, June 28, 2013 4:07 AM
> *To:* discussion at sipforum.org
> *Subject:* [SIPForum-discussion] Example of SIP Registration with
> multiple contacts****
>
> ** **
>
> Hi ****
>
> Can anybody give me a real time example/scenario of SIP Register message
> with multiple contacts?****
>
> Register: sip.com****
>
> To: <karan at sip.com>  ///AOR ****
>
> From: <karan at sip.com>****
>
> Contact: <Contact1>, <Contact2>****
>
> Queries:****
>
> - Are there any SIP clients which has this capability to send multiple
> contacts with different IP/Ports associated with same AOR (To header) in
> same Register message****
>
> Please let me know about such clients****
>
> - Also is it possible to have multiple contacts in Register message which
> points to same IP/Port but differ in a sense that one is SIP URI and other
> is not****
>
> - Also check below scenario****
>
> Device1: Register1 with TO:karan at sip.com and Contact: Contact1****
>
> Device2: Register2 with TO:karan at sip.com and Contact:Contact2****
>
> When 200 OK for Register2 is received it will contain both Contact1,
> Contact2;****
>
> So now is it possible that when i Refresh my Register from Device2, Can
> this device2 include both the contacts in this Register request?****
>
> Thanks n Regards****
>
> Karandeep Singh****
>
> +91-9910344471****
>
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