CallZap is an easy to use CallerID software, with integrated call blocking features. It displays the name and number of the caller from the system tray, and also maintains a log of all calls that were received. You have the option to block calls based on their number (or part of it), as well as the name of the caller. In addition, you can also choose to block unknown and private callers.

The license of this software is Free Trial Software, the price is $14.95, you can free download and get a free trial.