CPHS Compliancy
The Common PCN Handset Specification (CPHS) is an industry standard that defines terminal and SIM functionality in addition to the standard GSM specifications.
CS
Circuit Switched. Connection from A to B which has a fixed bandwidth and is maintained over a period of time, such as, a voice telephone call.
CS-1 to CS-4
Coding Scheme. Determines the data rate per timeslot in GPRS.
CSD
Circuit Switched Data. CSD is a GSM service pro- viding a CS data connection at a rate of 9.6 or 14.4 Kbps.
CSP
Customer Service Profile. on a SIM card will deter- mine which menus on the phone are available to the user.
CSS
Cascading Style Sheet. A feature of browsers.
White Paper M600
EFR
Enhanced Full Rate, speech coding. Provides bet- ter speech quality than HR or FR.
e-GSM
Extended GSM. New frequencies specified by the European Radio Communications Committee (ERC) for GSM use when additional spectrum is needed
EMS
Enhanced Messaging Service. An extension of SMS enabling pictures, animations, sound and text formatting to be added to text messages. 3GPP has included EMS in the standards for SMS.
ETSI
European Telecommunications Standards Insti- tute. www.etsi.org
FCC
Federal Communications Commission. US govern- ment agency which regulates radio communica- tions.
DCIM
Digital Camera Images. The name of the root direc- tory when storing images according to the Design rule for Camera File system (DCF) standard.
DRM
Digital Rights Management; controlling copying and distribution of contents, with respect to intel- lectual property rights.
DTMF
Dual Tone Multi Frequency. A method of coding digits as a combination of two audible tones.
DUN
ECML
Electronic Commerce Modelling Language.
FR
Full Rate, speech coding.
GGSN
Gateway GPRS Support Node
GIF
Graphics Interchange Format. Format for storing images which also supports animated images. Highly compressed by limiting the colour palette to 16 or 256 colours.
General MIDI. Specifies a minimum level of per- formance compatibility.
GPRS
General Packet Radio Services.
84 | February 2006 |