Actually, I've had great results from CallWall. And, like the former reviewer, bought it while it was still in beta. I'm very pleased to see that it's still being worked on. With thanks and good luck to the developers for providing a bare-bones, but extremely reasonably priced alternative to the feature-rich, and correspondingly priced products from Parliant & Ovolab.

I've been using Call Wall for about a month. After only a week - I felt it was well worth it to pay the $10 registration fee during this beta period due to the fact that it works as advertised!

I have Call Wall setup on a MacMini G4. When the calls come in, it consults our Address Book and it's own Netlist of call abusers, plus the Blacklist and Whitelist I've setup within Call Wall. All you have to do is review the log of calls. If it's someone you don't want to get a call from, add them to the blacklist. Somone you know - click to add them to your whitelist. It's that easy. The next time a netlisted or blacklisted call comes in, your phone rings once and that's it. They're disconnected immediate - so it doesn't mess with calls you want to go to your answering machine or your fax machine.

You can also enable a voice response to callers if you have a Mac with speech capabilities. The message is customizable as well. I hope they will consider making these voice responses customizable to the caller - which would be even more helpful.

All in all - I love Call Wall! It couldn't be simpler!