video conferencing

[vlok stone]

http://voipsupply.com  have polycom video stuff.
they're near the airport. don't know if they demo
stuff
but they may to make a sale. give 'em a call. i have a
polycom cd that comes w/ their phones that has  a
promo/commericial for their products. 

--- Justin Bennett <Justin.Bennett at dynabrade.com>
wrote:

> Joe,
> Wow thanks for the thorough explanation. We're
> primarily looking for a 
> Conference room to conference room type of setup,
> only two points. 
> Unidirectional mics would be nice, maybe overhead
> speakers.
>  
> It's for executives and product development type
> individuals to conference.
>  
> The DSL in Europe is pretty decent, speed and
> reliability wise. We have 
> about a 110ms latency between both ends, we have a
> VPN between the two 
> LANs so I'm figuring to just throw two pieces of
> equipment behind that 
> so any ports should be fine. I like the idea of two
> PC's because I could 
> test it pretty inexpensively, but I think we're
> looking for a more 
> commercial solution in the long run. I'm hoping to
> be able to get some 
> equipment (polycom?) to test, or see a demo. Is
> there place locally that 
> does this kind of thing that anyone knows of? I
> don't want to spend $6K 
> and find out it sucks between the two offices.
> 
> Justin
> 
> 
> Justin Bennett
> Network Administrator
> Dynabrade, Inc.
> 8989 Sheridan Dr.
> Clarence, NY 14031
>  
> 
> 
> 
> On 6/9/2005 11:54 AM, Joseph Lukasiewicz wrote:
> 
> > Justin,
> >  
> > I have worked with VC systems at a few companies
> for a few years using 
> > "professional" equipment so I feel comfortable
> answering a few things 
> > for you.
> >  
> > There are a ton of solutions for Video
> Conferencing - however the 
> > quality and price are all over the place. Minimum
> bandwidth for an 
> > acceptable (non jerky) conference is 384K per
> connection (and 
> > obviously more is better).  Any less than that and
> the picture and 
> > sound freezes, stops and starts or is fuzzy and
> snowy or the size of a 
> > postage stamp. Some devices will connect at 128
> and 256 but unless 
> > this is an emergency connection to the South Pole
> you will be unhappy 
> > with the results. The T1 should be a good medium
> as it is conditioned 
> > bandwidth and will provide a consistant quality
> (see end note).  The 
> > DSL however is a burst type medium and since you
> are going overseas 
> > you may experience quality issues (see below).
> Also, unless it is a 
> > simple person to person face to face connection
> there are several 
> > questions and points you might want to explore
> first:
> >  
> > 1) Do you have dedicated rooms at each end?
> (Hardware setup, lighting, 
> > sound - mic's speakers, etc.) The color of the
> room light/dark affects 
> > the quality of the signal.
> >  
> > 2) What is the maximum, minimum and likely number
> of participants you 
> > are looking to have at each end? (Single table or
> theater style for 
> > larger groups) The larger the group the more
> important it is to have a 
> > good Mic that can be passed from person to person.
> It is amazing how 
> > amplified paper shuffling and side conversations
> muddy up a signal. 
> > Also a simple folder of paper signs like MUTE ON,
> MUTE OFF, CALL ME, 
> > etc. work wonders when the connection is not quite
> right.
> >  
> > 3) Will you ever have more than a point to point
> conference (3 way or 
> > more)? Then you will need to look at a bridging
> service.  The major 
> > carriers like MCI, AT&T, Sprint, etc. all offer
> something. Cost is 
> > based on the distance to the "legs" for each
> connection - overseas is 
> > more expensive than domestic.
> >  
> > 4) Clothing and background have a direct effect on
> quality of the 
> > signal - wild patterns, busy wall paper and your
> systems strain to 
> > keep up with the shifting image.  Ever see a
> weather man with a plaid 
> > jacket get "eaten" by the weather map?
> >  
> > 5) Weather can effect your connection.  The
> overseas link to you can 
> > go through several media - copper, fiber,
> microwave, satellite all of 
> > these have some latency that a regular voice
> conversation is less 
> > affected by. Your brain essentially filters out
> the dropouts and other 
> > signal irregularities as you speak and listen -
> but video amplifies 
> > these issues.  Just think about and "remote" news
> casts you have 
> > seen.  The ones over seas or to the space station
> all have that "not 
> > quite right" look and sound to them and these are
> from organizations 
> > with millions to spend to make this stuff work at
> its best. 
> >  
> > 6) Set up two local connection points to test
> equipment and procedures 
> > before you try to go international.  Try it inside
> the building as 
> > well as across town - the time you spend getting
> things ironed out 
> > when you can walk over to the equipment will be
> well worth it when you 
> > try the far flung connections.
> >  
> > There are more subtle points but these are the
> biggies.  I have worked 
> > with Logitech camera on a PC over a Cable
> broadband connection to a 
> > Polycom VC system and had fair results. Obviously
> router 
> > configurations, open ports for Video signals etc
> all come into play, 
> > not to mention netmeeting style white boards or
> collaborative software 
> > for presentations.
> >  
> > Joe Lukasiewicz
> >
> > */Dave Andruczyk <djandruczyk at yahoo.com>/* wrote:
> >
> >
> >
> >     --- Justin Bennett wrote:
> >
> >     > This is not neccesarily a Linux question but
> a general technology
> >     > question, I'm looking for an IP video
> confrencing solution. We
> >     have a
> >     > site in Europe and one here that we would
> like to do some Video
> >     > Confrencing between. Just between two fixed
> locations, probably
> >     > confrence rooms.
> >     >
> >     > I'm looking for an IP solution to use over
> our VPN. We have a
> >     full T1
> >     > (1.5MB) here, and about double that in the
> form of DSL in Europe.
> >     > I'm hoping to keep the traffic around 512MB
> or less to not
> >     congest our
> >     > connection too much.
> >     >
> >     > Any reccomendations?
> >     >
> >     > Thanks
> >     > Justin
> >
> >     gnomemeeting
> >
> >     Dave J. Andruczyk
> >
> >
> >
> >     __________________________________
> >     Discover Yahoo!
> >     Get on-the-go sports scores,! stock quotes,
> news 
=== message truncated ===


Free Good
Fire Bad


		
__________________________________ 
Discover Yahoo! 
Use Yahoo! to plan a weekend, have fun online and more. Check it out! 
http://discover.yahoo.com/