Simplex Operation; System Key Usage; End Key Usage; Last Digit Clear And Display Clear - Ericsson DUAL FORMAT MDR Operator's Manual

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Simplex Operation*

The user can choose to terminate duplex operation and still maintain the
interconnect call in progress by pressing FCN followed by 5 JKL. This key
sequence toggles between simplex and duplex operation.

*/System Key usage

The "*/System" ramp button is used in multiple contexts. When pressed
while in monitor mode (i.e. radio is not in a special or interconnect call) the
radio ramps through available systems in one direction. If FCN followed by
"*/System" is pressed, system ramping takes place in the opposite direction.
If this key is pressed after any key other than FCN the "*" is returned.

END key Usage

The END key is used to terminate interconnect and individual calls.
Additionally, if the radio is programmed as a supervisory radio this key can be
used to terminate activity, i.e. clear emergencies, drop calls, etc.

Last Digit Clear And Display Clear*

To clear the last digit entered in the display, momentarily press CLR. To
clear the entire display, press and hold CLR for at least one second.
For functions without associated icons the current status is displayed by
pressing FCN key followed by the desired function. At that time the current
state is displayed in the handset's character display. If the state is to be
changed, the user must again press the desired function key at which time the
new state is displayed. Once the user is satisfied with the selection, let the
display expire by not pressing any keys, or press END to signify that the
current activity has ended.

1/HORN Key*

The horn alert option can be pre-programmed to: 1) generate a 1 second
horn blast, 2) generate three 1/2 second horn blasts, or 3) generate a continuous
horn blast when a call is received. This function is enabled or disabled by
pressing FCN and then 1 QZ. Pressing
blowing the horn. The horn alert remains enabled for subsequent calls until
disabled.
22
5 5
during the alert tone prevents

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