VTOA/VoIP/ISDN telephony gateway

Author

Grilo, António Manuel ; Carvalho, Pedro Miguel ; Medeiros, Ludmjila Maria ; Nunes, Mário Serafim

Author_Institution

INESC, Lisbon, Portugal

fYear

1999

fDate

1999

Firstpage

230

Lastpage

235

Abstract

This paper presents the architecture and implementation of a telephony gateway for interworking between ISDN, ATM and IP telephony. In this way, interworking is achieved both within private networks and with the PSTN, address translation being performed according to both the VTOA (ATM interface) and H.323 (IP interface) specifications. The gateway implementation is based on a PC, presenting a cost-effective alternative to the equipment currently available on the market. Moreover, its highly modular software architecture allows new telephony interfaces to be easily added

Keywords

ISDN; Internet telephony; asynchronous transfer mode; internetworking; protocols; software architecture; ATM interface; H.323; IP interface; IP telephony; ISDN; PC; PSTN; VTOA; VoIP; address translation; modular software architecture; private networks; protocols; telephony gateway; Costs; Decision support systems; ISDN; Internet telephony; Phase change materials; Protocols; Quality of service; Software architecture; Streaming media; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

ATM, 1999. ICATM '99. 1999 2nd International Conference on

Conference_Location

Colmar

Print_ISBN

0-7803-5428-1

Type

conf

DOI

10.1109/ICATM.1999.786807

Filename

786807

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3079947