xADVANCED OPERATIONS ..................................................... 23DTMF (DUAL TONE MULTI FREQUENCY) CALLS ............................ 23TRUNKING CALLS .......................................................................... 24EMERGENCY CALLS ........................................................................ 25SCRAMBLER.................................................................................... 25SIGNALING ...................................................................................... 26VOICE OPERATED TRANSMISSION (VOX) ...................................... 27BACKGROUND OPERATIONS ................................................. 29CLOCK (NX-200/ NX-300/ NX-200G/ NX-300G ONLY) .................... 29VIBRATOR........................................................................................ 29TIME-OUT TIMER (TOT) .................................................................. 29BATTERY SAVER .............................................................................. 30KEY LOCK ........................................................................................ 30LOW BATTERY WARNING (NX-200S/ NX-300S) ............................. 30LOW BATTERY WARNING(NX-200/ NX-300/ NX-200G/ NX-300G)........................................... 30SIGNAL STRENGTH INDICATOR(NX-200/ NX-300/ NX-200G/ NX-300G ONLY) ................................. 30COMPANDER ................................................................................... 31BUSY CHANNEL LOCKOUT (BCL) .................................................... 31CONTROL CHANNEL HUNT ............................................................. 31PTT ID .............................................................................................. 31VGS-1 OPTIONAL VOICE GUIDE & STORAGE UNIT ....................... 32VOICE RECORDER ........................................................................... 32VOICE GUIDE ................................................................................... 33