Title :
Experience with an IP Multimedia System Trial for PSTN Migration
Author :
Chiou, Hong-Bin ; Morrison, David ; Liao, Wanjiun
Author_Institution :
Chunghwa Telecom Co.Ltd, Taipei
fDate :
7/1/2007 12:00:00 AM
Abstract :
In this article, we share our experience of a trial that attempted to gain practical experience in migrating telephony services from the public service telephone network (PSTN) to the IP multimedia system (IMS) domain. We point out some key challenges on the migration path to IMS and identify many issues for successful service deployment in an IMS-based next generation network. Some regulatory concerns and non-technical issues also are addressed.
Keywords :
IP networks; multimedia communication; telephone networks; IMS; IP multimedia system; PSTN migration; next generation network; public service telephone network; telephony services; Central office; Centralized control; Collaboration; Control systems; Internet telephony; Law enforcement; Mediation; Monitoring; Multimedia systems; Network servers;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2007.382672
