Oregon Scientific PMR RADIO TRANSCEIVER TP380 - Manual (Page 14)

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1. Press MENU 5 consecutive times until appears on the LCD.
2. Press or to activate/deactivate the Key Tone function.
SILENT ALERT
Enabling the Silent Alert function allows you to be aware of any incoming
calls without needing to turn on any beeping sounds.
1. Press MENU 6 consecutive times until appears on the LCD.
2. Press or key to activate/deactivate the Silent Alert function.
NOTE:
1. If the vibration alert feature is activated, the device will vibrate for 20
seconds.
2 The unit will not vibrate if there are continue transmission.
3. The unit will ONLY vibrate again without any transmission after 30
seconds for energy save purpose, thereafter.
APO FUNCTION (AUTOMATIC POWER OFF)
This enables your transceiver to automatically shut itself off if left idle
for 2 hours and save battery power.
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