88 8-288-28Service Mode > FAX > Setting of NCU Parameters > BUSY TONE 1Service Mode > FAX > Setting of NCU Parameters > BUSY TONE 1■ BUSY TONE 0● Bit SwitchBit No. Function 1 0Bit 0 - - -Bit 1 - - -Bit 2 - - -Bit 3 - - -Bit 4 - - -Bit 5 - - -Bit 6 - - -Bit 7 Signal detection Detected Not detected● Numeric value parameterParameter No. Function Setting range01; - -02; T1 timer 0 to 9999 (x 10 msec)03; T2 timer 0 to 9999 (x 10 msec)04; T3 timer 0 to 9999 (x 10 msec)05; T4 timer 0 to 9999 (x 10 msec)06; - -07; - -08; Number of signal frequency 0 to 9999T-8-35T-8-36■ BUSY TONE 1● Bit SwitchBit No. Function 1 0Bit 0 - - -Bit 1 - - -Bit 2 Signal frequency Changed Not changedBit 3 RBT signal detection Detected Not detectedBit 4 Judgment of intermittent signal start from valid ON signal start from either valid ONsignal or OFF signalBit 5 RBT signal check cycle 1cycle 1/2 cycleBit 6 Signal form Continuous IntermittentBit 7 Signal detection Detected Not detected● Numeric value parameterParameter No. Function Setting range01; - -02; T1 timer 0 to 9999 (x 10 msec)03; T2 timer 0 to 9999 (x 10 msec)04; T3 timer 0 to 9999 (x 10 msec)05; T4 timer 0 to 9999 (x 10 msec)06; Signal detection table 0 to 1607; Signal detection level 0 to 708; Number of signal frequency 0 to 9999T-8-37T-8-38