White paper
T707
52
February 2009
Abbreviations
3GPP™
3rd Generation Partnership Project
AAC
Advanced Audio Coding
AAC+
High Efficiency AAC v.1
AJAX
Asynchronous JavaScript and XML
AMR
Adaptive Multi Rate. Audio format for speech
sounds
AMR-NB
Adaptive Multi Rate Narrow Band
AMR-WB
Adaptive Multi Rate Wide Band, a more advanced
codec that supports speech with higher quality
API
Application Programming Interface
Bluetooth PAN
Bluetooth Personal Area Network
CS
Circuit Switched
CSD
Circuit Switched Data
DRM
Digital Rights Management. Controlling copying
and distribution of contents, with respect to
intellectual property rights
DTMF or Touch Tone
Dual Tone Multi-Frequency signal. Codes sent as
tone signals. Used for telephone banking,
accessing an answering machine, etc.
EDGE
Enhanced Data Rates for GSM Evolution
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 core 900
frequency band. This extension provides increased
network capability
eAAC+
High Efficiency AAC v.2
EDR
Enhanced Data Rate
EFR
Enhanced Full Rate, speech coding
EMS
Enhanced Messaging Service. Allows the user to
add simple pixel pictures and animations, sounds
and melodies to a text message. The EMS 3GPP™
standard also includes text formatting
ETSI
European Telecommunications Standards Institute
