Re: [sipcore] About Join and Replaces Headers: //Replaces header's extension

[[e-mail]]

Paul,
 
> I still don't understand one aspect here:
> 
> Is this a case of
> - a smart device with a limited display wanting to bring in
>    a dumb device with a good display into an existing call?
> 
> - a smart device with a good diplay wanting to inject its
>    capabilities into an existing call preempting a dumb
>    device with limited capabilities?
> 

Both of the two ways are working for its specific case.

While, my intention is to find a more general solution, not depending on 
the capability of the UA(especially which UA).

> 
> If its a smart device with limited display capabilities, I think it can 
> just use 3pcc to control the device with the good display, as a slave 
> media server to itself. In that case I think there are no unsolved 
issues.

Yes, there's no need for extension using this way. But the way itself is 
not general enough.
I'll evaluate do I really need a general way or just a way as you 
suggested.

Thanks,

Gao

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