User Guide
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haptic, haptics
Haptic technology, haptics, or kinesthetic communication,
is tactile feedback technology which recreates the sense of
touch by applying forces, vibrations, or motions to the
user.
ISSI
Individual Short Subscriber Identity. sf. (T)
keypad lock
a) A function on a device, such as a mobile phone or
computer, that prevents a user accidentally activating
functions using the keypad or to prevent access to the
functions for security reasons.
Lone Worker
A operating function of a radio, associated with a user
profile, that allows a user working alone to indicate that
they are safe. When the user selects the Lone Worker
profile, the radio will periodically emit an audible alert.
Each time the user hears the alert he or she must press a
key on the keypad to prevent an alert being triggered. If
no key is pressed within a given time, the radio will send
an Emergency Status message will to a customised
location, for example to the Dispatcher. It can be
configured to send an emergency call or GPS co-
ordinates if an emergency situation is detected. See also
User Profiles.
Mode key
A key on a Sepura radio or mobile that activates various
functions when pressed or when pressed together with
the Navi-knob or Navi-keys. (S)
navigation keys
Four arrow keys (Left, Right, Up And Down ) on a
Sepura radio that allows users to choose menu options
and navigate through the menus. The keys are located
above the keypad. (S)
Navi-knob
A continuous rotating knob on a Sepura TETRA radio that
allows the user to change talkgroups, select status
messages, as well as controlling the speaker volume. (S)
keypad
A set of buttons arranged in a block or pad that have
either digits, symbols or alphabetical characters on, or a
combination of all of these. Do not use key mat,
keyboard, or alphanumeric keypad.
PABX
Public Automatic Branch eXchange. sf.
picture message
A small JPEG image file with an accompanying text
message sent to recipients over the TETRA Air Interface.
(S)
point-to-point call
A half duplex call made to a contact on the network using
the PTT button. Unlike a group call, a point-to-point call is
a private call to an individual.
PSTN
Public Switched Telephone Network. sf. (T)
PTT button
The button, usually on the side of the radio, pressed to
initiate a group call. The button is released to listen to any
response from other radio users.
Quick Call
A special individual call configured on a soft key to
request help or information from a pre-configured
individual or talkgroup destination in a non-emergency
situation. (S)
repeater
A device that is installed at a fixed location and whose
sole purpose is to receive a signal and then retransmit the
same signal at a higher strength. Repeaters are used by
institutions such as police departments and hospitals to
transmit signals over a longer distance than the two-way
radio was previously capable of. Installing a repeater
commonly used to eliminate a dead spot in a building or
town.
screen saver
An animation or image which replaces an unchanging
computer display after a period of inactivity.
SDS
Short data services (SDS) are TETRA transport services
for the transmission of data. Messages can be sent and
received by TETRA radios, dispatchers, and external
applications. The parties are identified by 24-bit integer
Short Subscriber Identities (see "S"). sf.