EFJohnson FM Portable Radio Intrinsically-Safe SMARTNET User Manual

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DTMF (Dual Tone Multi-Frequency) tones can be generated 

manually or automatically for ANI (Automatic Number Identification) 
and other purposes. The following options may be enabled by dealer 
programming for each conventional channel:

DTMF Keypad - Pressing 0-9, *, or # on the keypad while holding the 
PTT switch transmits the corresponding tone until the key is released.

Pre-Tx ANI - A preprogrammed ANI sequence is automatically sent 
when you press the PTT switch.

Post-TX ANI - A preprogrammed ANI sequence is automatically sent 
each time you release the PTT switch. 

Disabled - All DTMF signaling is disabled.

The following information describes features unique to the 

SMARTNET and SmartZone operating mode (see brief description on 
page 23). Refer to the preceding “Conventional Features” section for 
information on features common to all operating modes, and to the 
“General Information” section starting on page 16 for information on 
features common to all operating modes.

Each radio in a SMARTNET system is identified with a system ID 

and Unit ID. To display the Unit ID, make sure that a SMARTNET 
channel is selected and then turn power off and then on again. The soft-
ware version number, current zone, and Unit ID are then displayed in 
sequence. The six-digit Unit ID is displayed as IDxxxxxx.