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information to be passed from TETRA Switching
and Management Infrastructure (SwMI) to the
external network user and from the external
network user to the TETRA SwMI in accordance
with the TETRA Call Control (CC) procedures.
See also:
Public Switched Telephone Network
(PSTN)
The telephone network, traditionally
the wired network, that requires the public user
to address or dial the destination using a
telephone number for a temporary connection.
Push-to-Talk (PTT)
radio user initiates or joins a call. When you
press the PTT button (also known as keying up),
the radio sends data to the network infrastructure
to request call services.
Radio Frequency (RF)
frequency spectrum between the audio and
infrared light regions (about 10 kHz to
10,000,000 MHz).
Radio Signal Strength Indicator
(RSSI)
Determines radiation patterns of
transmitters antennas.
Radio User Assignment (RUA)
RUA/RUI feature.
See also:
Radio User Assignment/Radio User
Identity (RUA/RUI)
to assign alphanumeric user names to radio
users, and to authenticate the radio users in a
log-on process.
See also:
Radio User Identity (RUI)
RUA/RUI feature
See also:
Radio
A two-way communication device used
for voice and data.
Synonym:Subscriber
See also:
Remote Control Unit (RCU)
device attached to a covert radio over a thin wire,
used for operating the radio.
A method by which a
Part of the general
Part of
This feature allows you
Part of
A small
Public Switched Telephone Network
Remote Flashing
Programming the
transceiver through the control head.
Semi-Duplex Private Call
Private Call or Express Connect Call. In this type
of one-way call, the user presses and holds the
PTT while talking, and releases the PTT while
listening.
See also:
Short Data Service (SDS)
bearer service that transfers information from
one interface to another.
Short Subscriber Identity (SSI)
network specific portion of a TETRA Subscriber
Identity. An SSI is only unique within one TETRA
subdomain (one TETRA network).
Software Image
A collection of files
distinguished by individual releases. It contains
firmware, codeplug, and audio template files
dedicated to specific radio models.
Static Cipher Key (SCK)
encryption between radios and Base Transceiver
Subsystem in Class 2 systems with
corresponding algorithm.
See also:
Status ID
A feature that makes it possible for
a subscriber to send status messages to other
subscribers. The user can enter a status
message for each ID in a Status ID list. When a
subscriber sends a status message, the ID of the
subscriber's unit is sent along with the status
message.
Subscriber Identity Module (SIM)
smart card that holds subscriber information
(including the authentication key) and is inserted
into the radio to grant its personality.
Subscriber
A user of telecommunications
services who attaches to the network through a
radio and receives the telecommunication
service treatment specified for subscribers.
Switching and Management
Infrastructure (SwMI)
MN004527A01-AG
Also called
A flexible
The
Key used for
A
All the system
115
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