system including user interface for accessing and maintaining profile data of user subscribed telephony servicesUS795750919 Oct 20077 Jun 2011At&T Intellectual Property I, L.P.Voice enhancing for advance intelligent network servicesUS80598086 Jul 201015 Nov 2011At&T Intellectual Property I, L.P.System and method for implementing and accessing call forwarding servicesUS808173720 May 200920 Dec 2011