Telephone Communication Monitoring Device and Method

Direct route ISDN primary route interface

Method for Providing Functionality of an Exchange Termination Unit and a Line Termination Unit in a Communication Network

Platform for rapid development of telecommunication services

Intelligent wrong number intercept handler

Method and system for termination blocking of message delivery service

Fault tolerant wireless communication systems and methods

Efficient connection of ISDN private branch exchanges to a packet-switched network

Method for transferring information and associated network transition units