System for establishing a permanent internet connection via...

System for executing advanced interactive voice response...

System for handling large blocks of special number calls in...

System for handling large blocks of special number calls in...

System for maintaining PBX license key information in the...

System for managing office data in an exchange,...

System, method and apparatus for least cost automatic...

System, method and computer program product for achieving...

System, method and computer program product for achieving...

Systems and methods for integrating PSTN and IP application...

Systems and methods for managing a numbering plan area split...

Systems and methods for providing ENUM in an LNP environment

Systems and methods for providing voice mail services to...

Systems and methods for wireless number portability solution...

Systems, methods and apparatus for providing a plurality of...

Systems, methods and articles of manufacture for performing dist