GRUU has nothing to do with this scenario and neither does SIP has a
mechanism to achieve it straight away.

You can use a B2BUA to achieve it.

B2BUA can fork the call from B to both the devices of A (in your case
mobile&Laptop) with different SDP,one with audio(mobile) and other with
video(laptop) and maintain both the calls and act as relay server for
audio and video.


Thanks
Anand.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
Premalatha Kuppan
Sent: Friday, March 19, 2010 5:28 PM
To: [email protected]
Subject: Re: [Sip-implementors] GRUU - SIP extension Basic questions

Say for example, User B calls User A. @ User A i have GRUU support.

Here, i want both my devices @ User A to be alerted and should
participate in a call.

How can do this ?

I assume, using GRUU i can reach both my end devices. Correct me if iam
wrong.

On Fri, Mar 19, 2010 at 5:23 PM, Brett Tate <[email protected]> wrote:

> What you are describing requires a B2BUA and is supported by some
vendors.
>  GRUU has no direct relevance upon the service.
>
> > -----Original Message-----
> > From: [email protected] [mailto:sip- 
> > [email protected]] On Behalf Of Premalatha 
> > Kuppan
> > Sent: Friday, March 19, 2010 7:43 AM
> > To: [email protected]
> > Subject: Re: [Sip-implementors] GRUU - SIP extension Basic questions
> >
> > This is my scenario:
> >
> > I have a sip client in my Mobile phone, but no video support. For a 
> > video chat, i want to use my mobile for audio and video should be 
> > displayed in laptop.
> >
> > I was curious whether using GRUU concept, can i make both the 
> > devices to participate in a call. Such that, my Mobile phone would 
> > carry m=audio & a=sendrec. But Laptop, only Video - m=video, 
> > a=recvonly.
> >
> >
> > I just wonder is there any feasible way to make this scenario to
work.
>
>
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