Abbreviations, Api | Sony Ericsson J100 manual

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Abbreviations

AMR

Adaptive Multi Rate.

Audio format for speech sounds.

API

Application Programming Interface.

DTMF or Touch Tone

Dual Tone Multi-Frequency signal – codes sent as tone signals. Used for telephone banking, access- ing an answering machine, etc.

e-GSM

Extended GSM. New frequencies specified by the European Radio Communications Committee (ERC) for GSM use when additional spectrum is needed (Network-dependent). It allows operators to transmit and receive just outside GSM’s core 900 frequency band. This extension gives increased network capability.

ETSI

European Telecommunications Standards Institute.

GSM

Global System for Mobile Communications. The GSM system family includes GSM 850, GSM 900, GSM 1800 and GSM 1900. There are different phases of roll-out for the GSM system and GSM phones are either phase 1 or phase 2 compliant.

Mobile Termination.

SIM-card

Subscriber Identity Module card – a card that must be inserted in any GSM-based mobile phone. It contains subscriber details, security information and memory for a personal directory of numbers. The card can be a small plug-in type or credit card- sized, but both types have the same functions.

SMS

Short Messaging Service. Allows messages of up to 160 characters to be sent and received via the network operator’s message centre to a mobile phone.

User interface.

USSD

Unstructured Supplementary Services Data.

20	February 2006