Enhanced video phone services for NGN/IMS (pages 580–587)
Gong-Da Fan, Chao-Chun Huang, Yi-Bing Lin, Chung-Shih Tang, Chin-Ywu Twu and Yun-Hui Wen
Version of Record online: 1 JUL 2010 | DOI: 10.1002/wcm.997
A Next Generation Network (NGN) has been developed in Taiwan, where IP Multimedia Subsystem (IMS) plays an important role to offer IP-based multimedia services. In this paper, we show how existing video phone service can be enhanced through Chunghwa Telecom's NGN/IMS. Specifically, we illustrate three examples including Multimedia on Demand (MOD) TV, Multimedia Ringback Tone (MRBT) and Easy Go (EzGo). We also measure the delay times for accessing these services, which indicates that performance for these IMS-based services is satisfactory.