asterisk users - Feb 2005 - Teleconferencing using Zapta cards.

Hi,

I would like to use the asterisk box with zapta card to enable some 
conferencing. I would like to use only TDM connections without VoIP. I'd 
like also use the Meetme app. I have some questions:

1. Does any one use it for a few conference rooms at ones ?
2. Is it possible to restrict the number of users connected to one 
conference room ?

Regards.

Pawel.