there are many times when you wish to block certain calls like, marketers, debt collection companies, anonymous callers, private callers, etc. well, if you have a land line phone that should be relatively easy to do. most phone companies offer a variety of these services like call blocking, anonymous call rejection, and priority ringing.
The best thing to do to find out if your phone service provider offer these services, is to call them, and ask them about the services they offer. one of the simplest method is call blocking, subscribers just specify the numbers they want to block, and when these people call, the phone does not ring. the caller receive a message saying the call has been blocked.
anonymous call blocking – block unidentified incoming calls. personalized ring, which identify preferred callers with a unique ring. privacy manager is another service that prompt the caller to identify themselves before establishing the call, otherwise the call cannot go through.