It isn't *forbidden* to do this, but it is certainly not normal
behavior. It would be somewhat deceptive, and there is no single one
"right" way to aggregate the capabilities of the two devices. The
likelihood that the result will be beneficial to A or B is slim.
If you want to achieve this effect, I suggest that the proxy may return
a 3xx with the contacts for device1 and device2.
Thanks,
Paul
On 7/10/13 1:47 AM, manju nath wrote:
> Hi All,
>
> Does any one has any idea about request & response aggregation in SIP
> OPTIONS exchange??
> I have tried to google it and i found some thing about response aggregation
> like
>
> " Say there are two users A & B. A has two devices, device1 & device2
> [multidevice scenario]). A registered both of his devices. When B performs
> the OPTION exchange with A, proxy in between them will fork the OPTION
> request to both the device 1 & device 2 of A and gets the responses from
> them respectively & will aggregate the capabilities of A's both devices and
> will send a response to B's device."
>
> Is this is correct?? is there any specification which talks about request &
> response aggregation in SIP. Please help in finding the answer.
>
> Thanks in advance
>
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