OPERATING INSTRUCTIONS
MCUK001002C8
Section 3
Issue 1
Service Manual
– 19 –
Revision 0
3.16. Glossary of Terms
Term
Definition
DTMF
Dual Tone Multiple Frequency tones. The numeric keys 0 to 9, and * and # will generate different
DTMF tones when pressed during conversation. These are used to access voice mail, paging and
home banking services.
GSM
Global System for Mobile communications. The name given to the advanced digital technology that the
telephone uses.
Home country
The country in which the home network operates.
Home network
The GSM network on which subscription details are held.
Hot Key Dial
Hot Key Dial allows quick access to numbers stored in the Phonebook of Service Dial Number list. The
source of the Hot Key Dial may be defined by the user or preprogrammed by the Service Provide. It is
most likely to be preprogrammed to the Service Dial Numbers by the Service Provider.
Lock code
Used for security of the telephone. Factory set to “0000”.
Message Centre
Where messages are sent before they are forwarded onto their destination. The Message Centre
telephone number may be programmed into the SIM or supplied by the service provider.
Network operator
The organisation responsible for operating a GSM network. Each country will have at least one
network operator.
Password
Used for the control of the call bar function. Supplied by the service provider.
PIN
Personal Identification Number used for SIM security. Supplied by the service provider.
PIN2
Personal Identification Number used for the control of Fixed Dial Memory and call charge metering.
Supplied by the service provider.
PUK/ PUK2
PIN/PIN2 Unblocking Key. Used to unblock the PIN/PIN2. Supplied by the service provider.
Registration
The act of locking on to a GSM network. This is usually performed automatically by the telephone.
Roaming
The ability to use the telephone on networks other than the Home network.
Service Dial
Numbers
Service Dial Numbers are predefined numbers that allow the user to access a set of special services
provided by the Service Provider. For example billing information or access to Voice Mail.
Service provider
The organisation responsible for providing access to the GSM network.
SIM
Subscriber Identification Module. A small smart-card which stores unique subscriber and user-entered
information such as Phone Book, Fixed Dial Memory and short messages. Supplied by the service
provider.
Supplementary
service
Network-controlled GSM functions supported by the telephone. Supplementary services may only be
available on a subscription bases.
Wild numbers
Spaces in a stored telephone number. When the telephone number is recalled pressing a numeric key
will fill in a space. This can be used to restrict dialling to a specific area.
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