Method and system for selectively performing call...

Method and system for selectively performing call...

Method and system for selectively performing call...

Method and system for transmitting a message to a telephone...

Method and system for utilizing an information delivery service

Method for controlling an intelligent network call

Method for coordinating data changes among central office switch

Method for executing several services during a telephone call

Method for making a continuing call in an intelligent...

Method for providing a service in a telecommunication...

Method for providing a subscriber-based ringback tone sound

Method for providing network users with improved management...

Method for providing subscriber-based ringback tone in...

Method for providing subscriber-based ringback tone with no...

Method for routing service calls in a telecommunication...

Method for setting a number plan and providing a service for...

Method for speed calling automatic update

Method for storing analysis data in a telephone exchange

Method for storing messages in networked message memory units

Method of accessing an IP in an ISDN network with partial...