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• Send Status messages and SDS messages.

• Edit all text areas.

• Activate and deactivate terminal functions.

The following operations are not possible when in a call:

• Change network.

• Switch to DMO from TMO and vice versa.

• Activate Transmit Inhibit.

M

V

C

When a call is in progress, it is possible to establish any individual call type without first of all, leaving the call in progress.

From the group call in progress screen.

Press and hold the left arrow key or press the down arrow key to change the screen.

From this screen, it is possible to navigate to any function within the terminal.

DMO/TMO switching can be activated whilst engaged in an active call, but the call is immediately dropped by the terminal.

Transmit Inhibit can also be activated whilst engaged in an active call, but again the call is immediately dropped by the terminal. If the call in progress was a group call not established by this terminal then the call will be rejoined, under Transmit Inhibit rules if it is still in progress, through late entry signalling.

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To establish a private half or full duplex call either dial the number required from the keypad, select it from the Phonebook or use the call history menu.

Press either the PTT button or the green telephone key depending on the call type to be established.

The dialled number on the screen has been replaced by the text label from the Phonebook as the number was already resident within the terminal Phonebook.

C

T

W

E

A

G

C

If the user wishes to change talkgroup whilst involved in an active group call, press the Mode button once and proceed as normal. When the new talkgroup has been attached, the terminal will leave the active group call.

S

S

M

SDS M

Whilst established in any call type it is possible to send Status and SDS messages.

From a call in progress

Press Mode button twice and rotate the Navi-knob™ to select the message.

Press the green telephone key

At this point the user can enter a destination address in the dial box (or use the default address displayed) and press the green telephone key again. This will send the message to

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the specific destination. Alternatively, press the PTT twice to send the message to the currently attached group.

Once the message has been sent, press and hold the up or right arrow key to return to the call screen or just wait for the inactivity timeout.

E

A

T

A

A

D

T

F

From this screen either press and hold the left arrow key or press the down arrow key.

From this point, all areas of text editing can be carried out as described in TEXT ENTRY AND EDITING section.

Once the editing has been completed press and hold the up or right arrow key to return to the call screen.

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FALLBACK

If a base station loses communication with the rest of the network, then any terminals using this base station continue to operate, but with a reduced service. Entry to and exit from Fallback Mode are indicated by an audible alert and a customisable text message.

If this occurs, the terminal will only be able to communicate with other terminals that are registered on the same terminal site. No inter site communication will be available whilst in Fallback Mode.

When a terminal enters Fallback Mode there are five main indicators;

• the Terminal status bar indicates Fallback Mode and the yellow warning triangle is displayed momentarily

• the Fallback Mode text box pops up in the centre of screen for a few seconds.

• the RSSI antenna icon flashes continuously. On this screen shot it is not visible.

• the LED flashes amber intermittently (indicating limited service mode).

• The terminal generates a warning tone.

When the terminal leaves Fallback Mode:

• The terminal status bar returns to normal (Ready… or similar).

• The RSSI antenna icon stops flashing.

• The LED stops flashing.

• A text box pops up indicating normal operation.

• The terminal generates a warning tone.

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SHORTCUTS

Shortcut Description

Menu Tab access

Press the down navigation key from the main menu to display the last menu tab accessed. Enter a number from the keypad to display the menu tab associated with that number.

Talkgroup selection

Press the Mode button once, then select a talkgroup by using either the Navi-knob™ or entering the talkgroup number from the keypad.

Status Message selection Press the Mode button twice then select a status message using the Navi-knob™.

Phonebook Browser

If customised, press the right and/or left navigation key from the top level screen to display the Phonebook (for viewing only).

Phonebook entry access

If the Phonebook is displayed in alphabetical order, press the first letter of the required name on the alphanumeric keypad to move to the first entry beginning with that letter.

Calling the most recent Call History menu destination

Press the green telephone key once to display the most recent Call History menu entry, then press either the PTT button or the green telephone key again to set up the call.

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TETRA Terminals

User Guide Issue 1 © Sepura Limited 2007