Product Description: Eliminate the cost of extra dedicated phone lines. All you have to do is connect your phone fax or answering machine to the ComSwitch 3.0. It routes calls to the appropriate device automatically. The exclusive TeleZapperĀ® technology dispatches telemarketers by sending a special tone that tells the dialer youre number is no longer in service. And it removes your number from their lists. Plus it alerts you to incoming calls when youre online. You have up to 15 seconds to decide whether you want to take the call or let it continue to your answerer. No more getting dumped while youre surfing the web. Or missing important calls while youre online. Try the ComSwitch with your favorite Caller ID device.