Motorola SL4000 ユーザーズマニュアル

NOTE: At Step 4, you can also use 

<

 

or

 

> 

to change the 

selected option.

Your radio is capable of Covert Mode. During covert mode, all 
keypad and programmed button access are blocked. When 
enabled, all visual indications (display, LED's and backlight) are 
disabled.

This feature allows audio or tone only via a wired accessory or a 
Bluetooth accessory.

Procedure: 
Press the 

c

 button and the 2, 5 and 8 numeric keys in tandem 

in home screen.

Procedure:

Press the 

c

 button and the 2, 5 and 8 numeric keys in 

tandem. Radio will go back to normal mode.
OR
Power cycle the radio via the On/Off button to exit Covert 
Mode.

The Dual Tone Multi Frequency (DTMF) feature allows the radio 
to operate in a radio system with an interface to telephone 
systems.

To initiate a DTMF call.

Press and hold the PTT button.

Enter the desired number, * or #.

You can turn off the DTMF tone by disabling all radio tones and 
alerts (see Turning the Radio Tones/Alerts On or Off on 
page 82).

EMEA-ANZ.book  Page 70  Monday, March 19, 2012  2:32 PM