White paper
Sony Ericsson P1
79
May 2007
CLI
Calling Line Identity. Shows the number of the
person calling you in your mobile phone display.
Sony Ericsson P1 will also display the name and
photo of the caller if in Contacts.
You can then make an informed choice as to
whether or not to take the call. Bear in mind that
not all numbers can be displayed. To use this
service, it must be supported by your network.
COM Port
Defines a serial/RS-232 port within the Windows
environment. May be physical (COM1 port on the
rear of the PC) or virtual (COM5 port
communicating with a PC card modem).
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
providing a CS data connection at a rate of 9.6 or
14.4 Kbps.
CSP
Customer Service Profile. on a SIM card will
determine which menus on the phone are available
to the user.
CSS
Cascading Style Sheet. A feature of browsers.
DCIM
Digital Camera Images. The name of the root
directory 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
intellectual property rights.
DTMF
Dual Tone Multi Frequency. A method of coding
digits as a combination of two audible tones.
DUN
Dial-Up Networking.
ECML
Electronic Commerce Modelling Language.
EFR
Enhanced Full Rate, speech coding. Provides
better 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 (Network-dependent). It allows operators
to transmit and receive just outside GSM's core
900MHz frequency band. This extension gives
increased network capability.
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 Institute.
www.etsi.org
