Towards junking the PBX: deploying IP telephony

We describe the architecture and implementation of our Internet telephony test-bed intended to replace the departmental PBX (telephone switch). It interworks with the traditional telephone networks via a PSTN/IP gateway. It also serves as a corporate or campus infrastructure for existing and future services like web, email, video and streaming media. Initially intended for a few users, it will eventually replace the plain old telephones from our offices, due to the cost benefit and new services it offers. We also discuss common inter-operability problems between the PBX and the gateway. Keywords Internet telephony deployment; VoIP test-bed; PSTN/IP interoperability; SIP

• Type: Conference
• Year: 2001
• Where: NOSSDAV
• Authors: Wenyu Jiang, Jonathan Lennox, Henning Schulzrinne, Kundan Singh
• Keywords: Computer Networks, Departmental Pbx, Internet Telephony, NOSSDAV 2001, Traditional Telephone Networks