Now that you have that done, you need to insert the Asterisk into the middle of the network.
Asterisk is a VoIP PABX. As such, you pass traffic through it from one device to another. So, you now need to start familiarizing yourself with how to connect your
SPA-3000 and SPA-2100 as client extensions of your Asterisk box.
When you are all done, calls will ring in on the 3000, the Asterisk will ring the 2100 for a few rings and then the Asterisk will pass the call to Voice Mail, which will take a message. When you get home you will pick up the phone connected to the 2100, hear the stutter Dial Tone, call in to the Asterisk and retrieve the message. Alternatively, Asterisk will have collected the message, converted it into a .wav file, and sent it to your email inbox.