Mobile phones

Mobile phones

Industry: Mobile communications

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Mobile phones

IS-54

Mobile communications; Mobile phones

The first generation of the digital standard TDMA technology.

Short message service centre (SMSC)

Mobile communications; Mobile phones

The hardware device submitting the messages. Currently, SMSC devices support binary formats.

Simple network paging protocol (SNNP)

Mobile communications; Mobile phones

A sequence of commands and replies where pages are delivered to individual paging terminals. The most obvious benefit is the elimination of the need for modems and phone lines to produce alphanumeric ...

Simulcast

Mobile communications; Mobile phones

A signalling technique that broadcasts the same signal over multiple sites in a network.

Sleep mode

Mobile communications; Mobile phones

Designed to conserve battery life, this mode automatically turns off a terminal after it has been unused for a specified period of time. The unit is reactivated when the keypad is touched.

Smart antenna

Mobile communications; Mobile phones

An antenna system that focuses its beam on a desired signal to reduce interference. A wireless network employs smart antennas at its base stations in an effort to reduce the number of dropped calls, ...

Smart card

Mobile communications; Mobile phones

A plastic card containing important data about a person's identity to allow access to a network or premises. Also, a card containing subscriber information, often inserted into GSM phones for roaming ...