A tangible storage medium stores code which permits handling of unwanted
calls from callers such as telemarketers, when caller identification is
provided. In one embodiment, the called party adds the caller
identification information for the telemarketer to a personal list after
receiving the unwanted call. Subsequent calls from the telemarketer are
intercepted. In a second embodiment, the called party identifies the
telemarketer by detecting the caller identification information before
answering the call. By providing a screen listing indication, the caller
identification information is added to the called party's personal list
before the call is completed, permitting the call to be intercepted and
while future calls from the telemarketer to be intercepted.