Can Asterisk work with out internet?

I wanted to used asterisk as a specialized programmable answering machine.

If I understand correctly I can interface Asterisk with a land line, using something like the Linksys SPA2102.

Is there a simpler interface than the Linksys SPA2102, all I think I need is a way for the land line to communicate with my computer (asterisk).

I posted what I wanted to do on another thread here:


You may use an analog card from Digium too, like the tdm410 with just one fxo module.


Marco Bruni

Simple asterisk answering machine. Use a cheap X101P card. Set up Asterisk, loading modules zaptel.ko and wcfxo.ko. Appropriate zapata.conf with context=default

Extensions .conf

exten => s,1,NoOp(Channel:${CHANNEL})
exten => s,2,Wait(15) ; allow to ring 4 times (15 seconds)
exten => s,3,Answer()
exten => s,4,VoiceMail(su6004) ; go to 6004 mailbox with unavailable message
exten => s,5,Hangup
exten => a,1,VoicemailMain(6004|s) ; if the caller presses * then read the VM
exten => a,2,Hangup

So what’s the bare minimum specs of pc that asterisk can work on with?

Some report usable results using a 100 Mhz system, but this will probably only work out well for a residential or SOHO setup with very few simultaneous calls.