iGSM: VoIP service for mobile networks

Author

Rao, Herman C H ; Lin, Yi-Bing ; Cho, Sheng-Lin

Author_Institution

AT & T Labs., USA

Volume

38

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

62

Lastpage

69

Abstract

This article proposes iGSM: a voice-over-IP value-added service for the mobile network. The iGSM service provides user mobility to subscribers, which allows them to use either GSM handsets or H.323 terminals (IP phones or PCs) to access telecommunications services. We describe how the iGSM registration, deregistration, and call delivery procedures can be implemented without modifying the GSM network. We study how the tromboning effect in the standard GSM system can be avoided when accessing the IP network. Then we investigate the misrouting problem caused by user mobility

Keywords

Internet telephony; cellular radio; protocols; telecommunication network routing; GSM handsets; H.323 terminals; VoIP service; call delivery procedures; deregistration; iGSM; misrouting problem; mobile networks; registration; tromboning effect; user mobility; voice-over-IP value-added service; GSM; IP networks; Internet telephony; Mediation; Personal communication networks; Protocols; Roaming; Telecommunication control; Telecommunication switching; Telephone sets;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/35.833558

Filename

833558