Re: [splices] Initiate an A/V Call Using Two Separate Devices proposal

Salvatore Loreto <salvatore.loreto@ericsson.com> Sun, 19 June 2011 13:12 UTC

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Date: Sun, 19 Jun 2011 16:12:44 +0300
From: Salvatore Loreto <salvatore.loreto@ericsson.com>
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Subject: Re: [splices] Initiate an A/V Call Using Two Separate Devices proposal
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while I agree with Dale that for the specific URN (i.e.: 
urn:invoke:call:initiate;)
used in the example does not make sense specifying the media type,
I am not so sure that not specifying the media type in a URN is the 
right thing to do in general

cheers
/Sal


On 6/18/11 4:44 PM, Shekh-Yusef, Rifaat (Rifaat) wrote:
> Hi Dale,
>
> Good point.
> I am fine with your proposal of not specifying the media type in a URN.
>
> Regards,
>   Rifaat
>
> ________________________________________
> From: Worley, Dale R (Dale)
> Sent: Friday, June 17, 2011 4:34 PM
> To: Shekh-Yusef, Rifaat (Rifaat); splices@ietf.org
> Subject: RE: [splices] Initiate an A/V Call Using Two Separate Devices proposal
>
> I like the general idea of this, but I'm not fond of the details.
>
> urn:invoke:call:initiate;media=video;target=bob@whatever
> seems to mean, "Initiate a call to bob@whatever, adding me as a 3rd-party origin for video".
>
> But I don't see the need for the "media=video" part of the URN, as the controller
> will have the opportunity to edit my SDP when it receives it before passing it on.
>
> But the URN urn:invoke:call:initiate;target=bob@whatever would seem to tell
> the UAS to initiate a call to bob@whatever, without including the UAC as a 3pcc participant.
>
> urn:invoke:call:initiate;media=video
> seems to mean, "Initiate a call to me, offering me your video resources."
>
> But again, there seems to be no reason to specify which media are desired, as the UAC
> can reject any offered streams that it doesn't like.
>
> I think we want to avoid having to specify media types in the URNs whenever possible, as they
> will be multiplying over time.  How would one specify, "Offer me your audio and text resources?"
>
> Dale
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