A friend of mine runs a doctors office (he is a doctor). He is thinking about installing Asterisk in order to replace his 5 office phones. He is paying about $600/month of phone bills and hopes Asterisk will lower his bills dramatically.
This is what he wants:
Get a mini PC with Linux and Asterisk running and connected to a PBX wireless router. Replace all of the 5 phones with Internet (Cisco perhaps) phones and connect them all into that PBX router with ethernet cables or even better somehow connect them wirelessly into the router (how can he do that?).
He also wants the “press 1 for sales… press 2 for support…” auto attendant system.
Also if possible he wants to do all this without the server and phone system being connected into the internet at all for the risk of being hacked. It would just be an intranet with the only out going connection is that single landline.
Basically all he wants is to connect his current landline phone (only one) wire into the Asterisk server/pc which subsquently would be connected wirelessly to each phone through that PBX router. So there would be zero access to the internet.
My question: Is this all possible? More importantly, would it dramatically lower the telephone costs? What hardware is required.
I was looking at this for the router: compusa.com/products/product … pfp=SEARCH
Thank you. I look foward to your advice.