ABBREVIATED DIALING BETWEEN PBX AND CENTREX SYSTEMS USING A VOIP PLATFORM

摘要

An abbreviated dialing (72) feature over a Voice over Internet Protocol (VoIP) (70) platform facilitates abbreviated dialing between a first phone system that serves a first customer location (12) and a second phone system that serves a second customer location. The first and second phone systems may comprise two Centrex groups, two PBXs or a Centrex group and a PBX.