BuddyPhone will even indicate your IP address for you, so any two PCs can easily connect to each other. If you don't know how to contact someone, BuddyPhone can possibly resolve an IP number from a valid e-mail address. The program offers a customizable answering machine to catch calls and messages while you're away. You can also block calls, and enable the auto-answer options to quickly connect to users. If you're looking for a way to trim down the long-distance bill, give this download a try.
Sound quality is good as long as users have decent microphones.
This version of BuddyPhone is ad-supported, so is completely free. An ad-free version can be purchased at the author's web site. BuddyPhone receives four smileys. Click here to download.