[SIPForum-discussion] Controlling SIP UA from the application

[technocrat voip]

As for as my knowledge is concerned your first question is possible.

Two phones can have the same userid/extension  registering to a proxy/PBX.

In some PBX the latest registration is considered as the current position of
the user ( like Asterisk). So i feel this is implementation dependent on how
we try to locate the user.

You may see that the extension is in use but i donot think you can
disconnect the call.

regards
vlrk



On Thu, Jul 17, 2008 at 2:04 AM, Jamie Chen <jamiechen168 at gmail.com> wrote:

> Hi there,
>
> I am seeking for your advice on the following question.
>
> (Q) Is it possible that 2 SIP UA registering the same extension and they
> both can co-exist peacefully? Let's say I give the user 2 SIP capable phones
> (one is office phone and the other one is cell phone) and I want them to use
> the same extension (e.g. the same SIP URI, sip:100 at mycompany.com<sip%3A100 at mycompany.com>).
> In this case there are 2 SIP UA registering the same extension number. Is
> this a legal SIP configuration? Or are we saying each SIP device must have
> different URI?
>
> (Q) Let's assume there is a way to achieve what the above question is
> tyring to achieve. Can I have these 2 phones to be in-sync? For example,
> once I answer the call from one phone. The other phone will be showing I am
> talking and I can disconnect the call from the other phone.
>
> Many thanks
>
>
>
>
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