This Call Blocker will surely make life easy for the help desk receptionist. And, subsequently for the senior executives (not so seniors are also included) also. This phone will eliminate unwanted sales calls, junk faxes (gone are the days I thought) and all alike. The idea is pretty simple.  When a call comes in, the gadget automatically answers before you get to hear the ring. A recorded message tries to get the zing out of the cold caller by saying commercial sales calls and fund raising requests are not be entertained. For personal and invited callers there is Press 5 code to get proceed.

Cold Call blocker source