CallFilter is an utility application made with the concept ?Simple Yet Efficient? for your Symbian devices. It allows you to hang-up any incoming calls from contacts selected as a filter rule in main application screen... This brings the realy comfort of one click to block/unblock your unwanted callers ... !! ain't that koooL .. Please visit www.anfymobile.com/callfilter if you are unable to get this version of application working for your specific phone.