ZyXEL Communications MSC1024G Series User Manual page 1000

Appendix A PSTN Parameters by Country
howler tone: 1400+2060+2450+2600Hz -3.0dB on 0.100s off 0.100s
warning tone: 1400Hz -18.0dB on 0.500s off continuous
confirmation tone: 400Hz -18.0dB on 0.125s off 0.125s
400Hz -18.0dB on 0.125s off 0.625s
holding tone: 440+480Hz -18.0dB on 0.500s off 0.500s
350+440Hz -18.0dB on 0.500s off 2.500s
Taiwan
Country Code: 2,taiwan
law: ulaw
impedance: 600ohm
loop current: 25 mA
tax type: metering
Ring parameters:
frequency: 20.0 Hz
amplitude: 53.0 Vrms
onTime1: 1.00 seconds
offTime1: 2.00 seconds
onTime2: 1.00 seconds
offTime2: 2.00 seconds
Pulse parameters:
flashMin: 90 ms
flashMax: 500 ms
breakMin: 47 ms
breakMax: 80 ms
makeMin: 30 ms
makeMax: 55 ms
interDigitMin: 250 ms
Meter parameters:
frequency: 12 kHz
onTime: 200 ms
offTime: 200 ms
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MSC1000G/1024G/1224G Series User's Guide