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What is PSTN/ISDN

Chapter 75
Encyclopedia of Internet Technologies and Applications
Standards of fixed telephony adopted by ITU-T.
Published in Chapter:
Session Initiation Protocol
Ilija Basicevic (Faculty of Technology Sciences, Novisad, Serbia) and Miroslav Popovic (Faculty of Technology Sciences, Novisad, Serbia)
Copyright: © 2008 |Pages: 7
DOI: 10.4018/978-1-59140-993-9.ch075
Abstract
With the appearance of the Internet as an important communications medium for widespread everyday use, which can be dated to the mid 90s, a need to establish a signalization protocol for multimedia communications was recognized. There were two major proposals: SIP by the Internet community, and H.323 by ITU-T.
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