Desktop voice over IP development with PSTN integration

Author

Balbinot, R. ; Guedes-Silveira, J. ; Franco, P.

Author_Institution

Pontifical Catholic Univ. of Rio Grande do Sul, Porto Alegre, Brazil

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

498

Abstract

Our design specification for voice over IP field applications has three main targets: the development and distribution of a free and open source application for voice communications over IP networks; the internetwork of this applications with the PSTN infrastructure without expensive equipments and the technology´s study for future developments. The application, called Ephone, uses a modular development approach in order to allow the use of different protocols, compression and robust audio transmission algorithms. Because of this approach we are creating a development API, interfacing with the current system, that will allow anyone interested in this subject to change the system´s usual operation and also to create new applications related to voice transmission using its platform. We describe an IP voice system and it explains the Ephone´s main features and workflows, questions the robust audio transmission as well as the viability of a voice tool quality in packet networks, particularly IP networks

Keywords

Internet telephony; application program interfaces; packet switching; telephone networks; transport protocols; API; Ephone; IP networks; IP voice system; PSTN infrastructure; audio transmission algorithms; compression algorithms; design specification; free source application; internetwork; modular development; open source application; packet networks; protocols; voice communications; voice over IP; voice tool quality; voice transmission; Communication switching; Communication system control; Costs; Delay; IP networks; Internet telephony; Protocols; Robustness; Switches; Web and internet services;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and signal Processing, 2001. PACRIM. 2001 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-7080-5

Type

conf

DOI

10.1109/PACRIM.2001.953679

Filename

953679