H.243

[ignsuryo]

Does anyone know what H.243 is about? I know it is related with chair control and cascading in H.320 world. Why is this standard never mention in H.323 world?

[robertk]

"H423: Procedures for establishing communication between three or more audiovisual terminals using digital channels up to 2Mbit/s in multiway conferences.
Defines initiation of communications between systems and capabilities negotiation procedures in multiway conferences."

Basicly, H243 is the protocol that enables a H320 MCU call.
(H242 is used point to point). Within H243 you have functions such as Chair control and means of cascading MCUS and so on.

I Belive that in a H323 setup you use H245 instead of both H242 and H243.

That might be the reason that you don't find the H243 standard in H323.


//Robert

[George]

Thanks Robert,

Heck of an answer there man! :) :D

[ignsuryo]

Thanks Robert. Does H.245 also handle chair control function in H.323?

[robertk]

I'm no expert on the protocols, but from what I understand, that is the case.

H.245 is for H.323 what H.242/H.243 is for H.320.

But remember, these are complex protocols, they have a large sets of functions, not all of them have to be supported in a H.323 client.


//Robert

[New Zealand Warrior]

Guys..and Gals,

Here is a link which describes all of the VC protocols and even some IP and Mobile protocols..

I know how it feels when you go to a meeting (especially when you work for a large Telco) and everyone is talking about H.2 this and H.2 that..so i thought id better find out what these all mean.

Have a look and keep a copy for the times when someone starts talking about protocols you know nothing about.

Hope it helps

http://www.teamsolutions.co.uk/acrobat/standards.pdf

New Zealand Warrior

[minilegs]

Good Day All

Could someone email me a copy of:

http://www.teamsolutions.co.uk/acrobat/standards.pdf

as it does not now appear on this site?

Thanks

Selwyn

[adlima]

Hi Can someone send me a copy of the link as well...
U may send on adolph.dlima@wipro.com or
adolf.dlima@bt.com.

Thanks & Cheers!!!

***Also can someone post the new link???***

Adolf

[DRI]

Not a link to what you mention above but the below link is a good reference for all ITU Standardization and documentation:

http://www.itu.int/ITU-T/publications/recs.html