A method of supporting a secure caller ID service (22) is provided in
connection with a telecommunications network (30). The method includes:
processing a call from a calling party to a called party, the called
party employing an end user terminal (10) served by a facility (20) of
the telecommunications network (30) to receive the call; maintaining a
voice sample database (28) containing a plurality of voice samples;
sampling the calling party's voice; comparing the sampled voice of the
calling party to a voice sample selected from the voice sample database
(28); and, communicating to the called party a result based upon an
outcome of the comparison.