[AG-TECH] AG calling - VRVS bridging facility
Paul Bonnett
P.Bonnett at ukerna.ac.uk
Mon Jan 22 05:18:03 CST 2007
In the UK we are running a pilot scheme to provide this bridging
facility, supported by the AGSC.
http://www.agsc.ja.net/services/VRVS.php
Paul Bonnett
Videoconferencing Service Co-ordinator
UKERNA
Atlas Centre Rm F16
Chilton, Didcot
Oxfordshire, OX11 0QS
Tel: 01235 822332
P.Bonnett at ukerna.ac.uk
www.ja.net
-----Original Message-----
From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On
Behalf Of bdr
Sent: 22 January 2007 01:15
To: Derek Piper
Cc: Access Grid Technical mailing list
Subject: Re: [AG-TECH] AG calling
When I was at Internet2, we actually used the VRVS to bridge H.323 with
the AG. The VRVS would allow a H.323 unit to be part of a VRVS
"session" and the VRVS reflector would "bridge" to selected AG "rooms".
I'm not sure if any of the code used is available for public
consumption, but Philippe Galvez <galvez at caltech.edu> is the VRVS "guy".
Derek Piper wrote:
>
> Hi all,
>
> Something I was thinking about was the differences between AG and
> H.323 and I was wondering if a 'blend' of the two, in a way, would be
> an interesting direction to go in.
> What I'm thinking about is this, and of course there are many
> questions and details to work out but I thought I'd bring it up to see
> what people might think:
>
> A 'Call server' that people log in to when the 'AG caller' client
> starts, analogous to the IM server, Jabber server or H.323 'gateway'
> Allows IM communication with all those connected
> 'Buddy lists' to see who's on?
> What about distribution of servers.. would you need an account on
> every server in the world? what about a registry of servers?
>
> IM 'calling' ..i.e. make a noise, flash something.. get user
attention.
> nicer than speakers on hanging around in a venue
> people who don't know you're on or where you're on may stand a
> better chance of contacting you :>
>
> Initiate video call just allocates IP addresses in the same way as a
> venue and runs media tools against either multicast or unicast to a
> bridge if that preference is set.
> Simple 2-way video conferencing. We've achieved 'AG Skype'
>
> Add another participant to a 'call' by invite or by messaging each
> participant.
>
> Could also move to 'conference room' which is the same as an AG venue
> is now.
> Maybe launch full AG VenueClient at that venue?
> Then you could do the same shared-app stuff as we have now.
>
>
> I'm kicking this around as a possibility and a direction for a
> project either as something that the AGtk moves towards or is an
> add-on for it. One of the things I've noticed is that polycoms are
> often used as a back channel and an ad-hoc meeting method because you
> can *call* someone. It's a videophone. AG relies on someone turning up
> where you are, and that's sometimes very awkward and not what people
> want to do.
> Basically to implement it seeing as we have a Jabber integration
> doesn't seem that hard on the surface. The client would start off to
> appearing something like GAIM, Psi or Skype and you place a video call
> to someone or start a conference in a venue.
>
> I'm curious to hear some points of view about it.
>
> Derek
>
--
Bob Riddle (bdr @ umich.edu) Enabling Technologies
University of Michigan Medical School 1301 Catherine Street
M4101 MSB1 - 6024 Ann Arbor, Michigan 48109-0624
"Math illiteracy affects 7 out of every 5 people"
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