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Dual-tone multi-frequency The tones that are heard when you press the buttons on a touch-tone telephone and allows you to send data via PSTN. DTMF assigns a...

Global System for Mobile Communication.

GSM is only voice and GPRS is voice and data.

Publicly Switched Telephone Network is the worldwide voice telephone network. THE PSTN Line is the conventional analogue telephone line that allows an emerg...

A network element that performs conversions between different coding and transmission formats. The gateway does this by having many types of commonly used t...

Internet Protocol. A packet-based protocol for delivering data across networks.

Voice over Internet Protocol. A protocol for transmitting the human voice in digital form over the Internet or other networks as an audio stream, instead of...

Global System for Mobile Communications Communication system that is designed to transmit voice and to replace a PSTN line.

Universal Mobile Telecommunications System represents an evolution in mobile network in terms of capacity, data speeds and new service capabilities.

Fourth generation mobile network that provides increased performance.