Software for using land phone line through Macbook?

[Carissa]

I am wondering if it is possible to use my Macbook as a regular telephone using the Apple USB modem with my land line. Is there any software available that will do this?

 

[Intell]

I don't think the Apple USB modem supports voice. Software for doing this does exist, but you have to use a modem that supports voice. However, I could be wrong. Its been a long time since I used any kind of telephony things.