Interface method performed by modem between base station and con

International call back technique with reduced post dialing dela

International direct dialing booking system

International priority calling system with callback features

International redial system driven by unsuccessful call reasons

Internet telephony callback system and method of operation

Line switching apparatus and method

Method and apparatus automatic call-back

Method and apparatus for automatic callback in a...

Method and apparatus for searching a plurality of destination nu

Method and apparatus for telephone call reorigination

Method and application means for establishing performance featur

Method and system for processing a telephone call

Method and system for providing a camp-on service

Method and system for providing automatic recall information in

Method for controlling a telephone call between two items of...

Method for preventing overload condition in a circuit...

Method for providing outgoing call reservation service in...

Method for transferring switch-based information to an external

Method of making a call reservation and sending an interrupt ton