Who's Calling turns your PC into a high-tech CallerID (CID) box with advanced
features. It even works for users who don't have CID services by dialing out to
a phone company service and getting the caller information.
It's easy to install and use, working with CID service to audibly announce
incoming calls by speaking the number, record caller information, block unwanted
calls, email call notifications, and more. You can create a list of callers to
block. When a blocked number is received, the phone is simply disconnected.