A call management method is provided for giving notification of calls unanswered at a destination telephone number and real-time management options for the unanswered call. When control of a call is passed to a call management server (50), notification of an incoming call is sent to a subscriber associated...http://www.google.fr/patents/US7110748?utm_source=gb-gplus-shareBrevet US7110748 - Telephone call manager
