Download of UniversalCallerID 2.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free software for Mac OS X was originally created by Comcast.
We recommend checking the downloaded files with any free antivirus. The bundle id for this application is com.comcast.callerid.4C7707E731FA230A00265DE26809CEAF299D5FFD. The program is included in Communication Tools. The most popular version of the tool is 2.1.
From the developer:
Comcast Universal Caller ID takes the guesswork out of incoming calls.
Watching TV? Surfing the web? Either way, it's easy to see who's calling—right on your TV or computer. You can choose to pick up the phone or let your call go to voice mail—it's effortless!
As a Comcast Digital Voice®, Digital Cable and High-Speed Internet customer, you get the convenience of Universal Caller ID on both your TV and PC.
You may want to check out more Mac applications, such as iChatMonitor, X-Lite 3 or Skype2Prowl 2, which might be similar to UniversalCallerID.