I am a student of computer science and I would like to experiment with VoIP at my university.
To be specific, I’d like to set up some sort of my own gateway.
Here is what I was hoping for:
I take a regular linux box plus some software (gateway) and hook it up to our LAN and also to our ISDN/POTS.
Somewhere within the LAN there will be IP phones and/or PCs with headsets and a VoIP Software.
Once a user initiates a call, it is handled by our own gateway which routes it into the ISDN/POTS.
Since this ISDN/POTS has some phone numbers, the gateway should be able to handle incoming calls, too.
If such an incoming call is registered, our gateway should be able to route this call to the associated IP phone or PC (which should then do some signalling job)
Okay. Now here is my question:
I am supposed to come up with a list of what material we need.
So I’d like to know from your experience
-what software I need for the gateway
-what software I need on the IP Client computers (PC workstations)
-what hardware IP phones we should consider buying
-what network interfaces or ISDN cards we should use for the gateway
-what other equipment we will need
-what else is there to know and consider?
Thank you so much for your greatly appreciated help!