To use this application, simply build a list of numbers that you would like to send busy signals to. That's it!. Now every time there is an incoming call made to your phone, our application will scan the incoming number and send a busy signal or let the phone ring incase the incoming number is not present in the blacklist. Sequence of Number Integration: With this feature the user will be able to reject all calls that contain a sequence of numbers. 'Reject All' Mode: This mode will send busy signals to all incoming callers. This feature will assure that none of the calls get through. White list: Enables the user to give some phone numbers priority by adding their numbers to the white lists. The phone numbers in the white list will be accepted at times, even in the 'Reject All' Mode. Contacts: Add groups and/or from phonebook to black or white lists. The application is simple to use. With easy User Interfaces and menus, running this application is a breeze. The user will be able to create a Blacklist of users that are to be blocked. You can add users directly from the Address Book or type in their numbers manually. You have complete control of the lists at all times. Call Filter is developed all series 60 devices. The application will run on the following devices, irrespective of your service provider: SendoX Semiens SX1/SX2 Panasonic X700/X800 Nokia 3230/3600/3620/3650/3660/6260/6600/6620/6630/6680/6681/6670/7610/7650/N-Gage/QD