Method of and system for efficient use of telecommunication netw

Method of and system for efficient use of telecommunication voic

Method of and system for terminating calls to selected trunk gro

Method of displaying called party information on calling party t

Method of establishing a connection, as well as exchanges and a

Method of making changes in a directory number...

Method of managing trunk and querying and ascertaining...

Method of operating a virtual private network

Method of processing intelligent network service call with DTMF

Method of routing emergency calls

Method of using dynamic database to improve telephone number por

Method system and article for audibly identifying a called...

Method to provide and perform a telephone service

Method to suppress number portability database queries for calls

Method, apparatus and system for completing a call when a...

Method, system and computer program product for providing a...

Method, system, and article for audibly identifying a called...

Method, system, and article for audibly identifying a called...

Methods and apparatus for integrating automatic route...

Methods and apparatus for using AIN techniques to facilitate...