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

Method of making call-wait and call-alternation in electronic pr

Method of secured redialing

Methods and apparatus for call back disposition and...

Methods, systems, and media to capture a redialing sequence...