Re: [XCON] Whisper vs. Sidebar

[Paul Kyzivat <pkyzivat at cisco.com>]

Paul

It seems to me that the straightforward way to achieve what you want is 
simply for you to send a MESSAGE to the address of the participant, 
obtained from the roster. The message would then be totally outside the 
conference.

There is a problem with this if you want to send a message to an 
anonymous participant of the conference. A solution to that is for the 
focus to provide temporary identities for anonymous participants. As a 
client, you would still just send your message to the address from the 
roster. But in this case the focus would act as an anonymizer. When the 
anonymous participant leaves the conference, the temporary identity 
would become invalid.

This would of course also work for things other than MESSAGE too. You 
could send an INVITE and establish a separate audio call. By default 
that would probably put both of you on hold to the conference. With 
suitable support in your UIs, you could have the conference muted in the 
background while participating in this separate call.

	Paul

Aki Niemi wrote:
> Hi,
>
> Ok, let's forget terminology here for a while and jump right into 
> use-case and solution space.
>
> My use-case is simple: I want to be able to send a private instant 
> message within a conference at any time, to any other participant(s). 
> Like in IRC, netmeeting, etc.
>
> The solution is equally simple: I will create an extension method to 
> MSRP called PRIVMSG. Upon receiving this method, the conference server 
> will not do the usual fan-out to all participants (including myself), 
> but will only deliver the message to the named participants in the CPIM 
> header. If it doesn't support this extension, it will reject the request.
>
> Call this what you will, a one-shot IM, a whisper, a private message, a 
> sidebar or something else, but the bottom line is that this is 
> definitely needed in IM conferences. Otherwise, I don't believe this 
> stuff will ever fly, since IRC will beat it hands down in functionality. 
> I would also find it odd if our xcon framework is too voice-centric to 
> accomodate this feature in a reasonable way.
>
> Cheers,
> Aki
>
> ext Brian Rosen wrote:
>
> > I am in agreement with all of your points.
> >
> > If folks have use cases for whisper for which isn't the agent/coach/mark
> > scenario we have been discussing, could we surface those now?
> >
> > For the basic sequence, would you accept a MESSAGE + talkspurt body
> > for a PTT whisper implementation?  Somehow, I suspect not, but speak up.
> >
> > Brian


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