Connect Asterisk and Alcatel OmniPCX Ent R12.1

[trungmv]

Hi Everyone,

I am newbie. Now i have plan to implement to connect Asterisk and Alcatel OmniPCX Ent R12.1 as below:
1. Headquarter site is Alcatel OmniPCX Ent R12.1
2. Another site can be 10-20 staffs and location is difference with HQ. I plan to installation Asterisk at each site.
The question is:
- How i can connect Asterisk at each site to Alcatel at HQ, the connection should be internet line/lease line or whatever?
- How to configure the Asterisk at each site and configure at Alcatel at HQ to both of these system communication?

Any advise is appreciated,

Thanks & best regards,
Henry/

[vad]

Why you want to install Asterisk on remote site? If you have IP connection - you can just install IP or SIP telephones from main PBX.