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

[Karan Thakur]

So we have multiple devices and out of those multiple devices one device
registers all others.
That means all the devices will have same AOR but different contacts and
each device will share its contact (IP/Port) with this master device.
And then this master device will send a single register request with
multiple different contacts to Registrar.
Hmmm...convincing enough. Eg could be IP_PBX extension board in
organizations.
Also agreed on the other thing you mentioned that if i am using gmail on
phone as well as on laptop and on tab, the register from any device will
always contain AOR mapped to only one contact( that of device sending the
request).

But if you come across any another real time scenario/device which sends
multiple contacts mapped to one AOR from one device, please do let me know.





On Sun, Jun 30, 2013 at 9:01 PM, Santosh Iyer <spi6281 at yahoo.com> wrote:

> One of the most common scenarios is shared line appearance. An assitant
> registers their line as well for thier bosses' line. That way when the
> boss' phone rings it also rings the assitants line the assitant can pick up
> the phone. Now if you are registering multiple devices for yourselves, say
> your desk and mobile phone, it wont make sense to send a register with
> multiple contact as the phone doesnt know abt the mobile and vice-versa.
> Another example is that of a device doing bulk registration on behalf of
> all the phones behind it.
> --------------------------------------------
> On Fri, 6/28/13, Karan Thakur <karan18.thakur at gmail.com> wrote:
>
>  Subject: [SIPForum-discussion] Example of SIP Registration with multiple
> contacts
>  To: discussion at sipforum.org
>  Date: Friday, June 28, 2013, 3:36 PM
>
>  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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