White Papers

White Paper: Push to Talk Technology

Overview Push-To-Talk (PTT) is a special feature on a mobile phone that combines the functionality of a walkie-talkie or 2-way radio with the normal mobile phone. It provides simple communication to a group of people with just a touch of a button. It is often referred to in Nokia technical documentation as 'Push to Talk over Cellular (PoC). It is based on half-duplex Voice over IP (VoIP) technology over the 2nd generation GSM/GPRS network. Thanks to the IP technology, the Push to talk service uses cellular access and radio resources more efficiently than circuit-switched cellular services, reserving network resources only for the duration of talk spurts instead of for an entire call session.

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Publisher
Nokia
File Format
PDF
Date Published
Jun 23, 2006
Format
White Papers
Topics
Mobile - Wireless Communications, Cellular Equipment, VoIP - IP Telephony

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