Ericsson LZT-1872R1A User Manual

Page 22

1/ALERT 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

and

then

Pressing PTT during the alert tone

prevents blowing the horn. The horn alert remains
enabled for subsequent calls until disabled.

2/Call Timer

The call timer function causes the time

duration for the current interconnect call to be
displayed. Note that the call timer starts when an
interconnect call is initiated. During a conversation
the call timer is displaying on the middle line of LCD.
The time display is automatically removed after a
preset time-out or can be removed from the display

by pressing

C. Call timer can be refresh by

pressing

F followed by

2. Time of the last

interconnect call will be displayed.

4/EXT MIC (HANDSFREE)

The external mic (Handsfree) option routes

audio to an external Portable or Vehicle Handsfree

unit. To enable the external mic, press

followed

Toggling this function provides the user with

the capability to have private conversations or allow
other passengers in the vehicle to participate in the
conversation (Vehicular Option). The character
display shows "INT MIC" if the internal speaker/mic is
currently active. To toggle the state to the external

speaker/mic press

4 key twice while the FCN icon

is on. (NOTE: With an external device connected the
Allegra will always “power-up” with the external unit
enabled.)

5/SIMPLEX

When operating in the simplex mode, the

MUTE icon follows the state of the transmit audio.
While in simplex mode, PTT must be pressed prior to
speaking. (NOTE: Applicable only in the interconnect
mode.)

6/MUTE

This function enables the user to mute the

transmit audio when operating in the duplex mode. To
disable the microphone so the called party cannot

hear the conversation, press

F followed by

MUTE is displayed. Re-enable the microphone using
the same key press sequence. The call is muted only
for the duration of the current interconnect call.

8/SCAN