Real-time communication on IP networks
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چکیده
Introduction Voice over IP (VoIP) has been characterised as the largest change to the telecommunication industry since the introduction of the Global System for Mobile Communication (GSM) 10 years ago. This statement is partly wrong. VoIP could be deployed as an alternative way to provide telephony with very little impact on the user experience. However, VoIP is an element of the transition from circuit-switched technology to packetswitched technology for all kinds of telecommunication applications including interactive real-time communication (i.e. telephony). The term Next Generation Network (NGN) is frequently used to describe this emerging network offering data, speech and realtime video on the same network.
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