Rename the downloaded file to call blocker.zip and extract it, you will find two files.
Version 2.79.280 is signed and only for symbian 3,anna and belle.
Version 2.15,248 is unsigned and for all s60v3, s60v5, symbian 3,anna and belle devices.
Advanced Blocker is an all-in-one solution to help you filter
unwanted voice calls, video calls, text messages, MMS and
WAP Push messages.