Can I use my computer as a telephone?

[fleetwoodmac]

I have a headset and everything, and I'm wondering if I can simply use my computer as if it were another telephone sitting around the house?

[leroys1000]

Yes,if you have a properly configured modem.
Some modems come with phone software or
you can use windows dialer.
Windows dialer. (http://xphelpandsupport.mvps.org/how_do_i_get_phone_dialer_to_wor.htm)

[zipulrich]

You might want to check out Skype, as well.