pThe CS 3.0 call waiting alert technology replaces the HotCall 2000, HC 3000 and HC 4000 products The ComSwitch 3.0 provides the three most useful features you will ever add to your telephone line, all in one simple device./p pYour incoming calls will automatically be SWITCHED to your fax or answering machine. Many telemarketing computer dialers will be ZAPPED with special tones that tell them your phone number has been disconnected, removing your number from their call list. Plus, when you are online with your computer, the ComSwitch 3.0 will ALERT you to incoming calls, allowing you to briefly take the call without losing your online connection./p