Motorola MTP850 S Product Information Manual page 107

See also: Talkgroup
Group Cipher Key (GCK)
corresponding algorithm. Used to generate MGCK.
See also: Modified Group Cipher Key
Group Short Subscriber Identity (GSSI)
See also: Short Subscriber Identity
GSSI
Group Short Subscriber Identity
Home Location Address
radio is allowed to operate.
See also: Base Station
Individual Short Subscriber Identity (ISSI)
radio.
See also: Short Subscriber Identity
Individual TETRA Subscriber Identity (ITSI)
See also: Individual Short Subscriber Identity
ISSI
Individual Short Subscriber Identity
ITSI
Individual TETRA Subscriber Identity
Key
Each device involved in secure communications is loaded with a multi-digit encryption variable ? an encryption key.
An encryption algorithm built into the device uses this key to encrypt voice or data as needed. Only devices in the system
with the same algorithm and encryption key can decode the encrypted signals.
See also: Encryption
LIP
Location Information Protocol
Local Site Trunking (LST)
the site and network central controller fails. Entering and exiting Local Site Trunking (that is, returning to Site Wide
Trunking) is done automatically ? the display shows the ?Local Area Service? message Any call in progress is dropped
upon entering Local Site Trunking mode. Registration, Group Call, and Emergency Call are available in Local Site
Trunking.
See also: Central Network Equipment
Location Request/Response Protocol (LRPP)
passing location information (requests and responses).
LRPP
Location Request/Response Protocol
LST
Local Site Trunking
MACE
Motorola Advanced Crypto Engine
Main Control Channel (MCCH)
the system and to request and setup speech calls with other radios.
See also: Control Channel
Predetermined cipher key used to provide confidentiality in Class 3 system with
,
Class 3
TETRA term, in Dimetra called Group ID or Talkgroup ID.
Area within radio coverage of a base station or group of base stations within which a
TETRA term for a unique, individual ID assigned for each
Consists of ISSI plus MCC and MNC codes.
, ,
Mobile Country Code
Allows radio subscribers of the same cell site to communicate when the link between
The main control channel at a site. The channel is used by radios to register on
Mobile Network Code
This protocol allows for a single and efficient format of
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Glossary | 107
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