ZyXEL Communications MSC1024G Series User Manual page 1006

Appendix A PSTN Parameters by Country
ring back tone: 425Hz -18.0dB on 1.000s off 4.000s
busy tone: 425Hz -18.0dB on 0.500s off 0.500s
congestion tone: 425Hz -18.0dB on 0.250s off 0.250s
call waiting tone #1: 425Hz -18.0dB on 0.150s off 0.150s
425Hz -18.0dB on 0.150s off 4.000s
call waiting tone #2: 2x(425Hz -18.0dB on 0.300s off 9.700s)
special dial tone: 425Hz -18.0dB on 1.500s off 0.100s
howler tone: 1400+2060+2450+2600Hz -3.0dB on 0.100s off 0.100s
warning tone: 425Hz -18.0dB on 0.350s off 0.500s
confirmation tone: 350+440Hz -18.0dB on 0.100s off 0.100s
350+440Hz -18.0dB on 0.100s off 0.100s
350+440Hz -18.0dB on 0.100s off continuous
holding tone: 950Hz -18.0dB on 0.650s off 0.320s
950Hz -18.0dB on 0.320s off 0.320s
1400Hz -18.0dB on 1.300s off 2.600s
Czech Republic
Country Code: 6,czech
law: alaw
impedance: 270ohm_750ohm_150nf
loop current: 25 mA
tax type: metering
Ring parameters:
frequency: 25.0 Hz
amplitude: 53.0 Vrms
onTime1: 1.00 seconds
offTime1: 4.00 seconds
onTime2: 1.00 seconds
offTime2: 4.00 seconds
Pulse parameters:
flashMin: 90 ms
flashMax: 500 ms
breakMin: 47 ms
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MSC1000G/1024G/1224G Series User's Guide