[Asterisk-Users] Help-to start Asterik PBX

[venkateswaran at anwsi.com]

 Hi
 I am trying to get started with asterik PBX.I need to establish a call 
 between an H.323 terminal (example : Netmeeting) and a SIP terminal.
 I would like to know :
 1)What are the configuration to be done Asterik PBX (I coild build the 
 source on Redhat Linux 7.3).
 2)How to configure the extensions
 3)How to make call from H.323 terminal (Do we need to register with PBX 
 like registering with Gatekeeper).
 
 Can any body provide some pointers for the above clarifications.
 
 Thanks for your time.
 
 venkateswaran