Zyxel IES-1000 EE [353/368] Vietnam

Zyxel IES-1000 EE [353/368] Vietnam
Appendix A PSTN Parameters by Country
VOP1224-61 User’s Guide
353
450Hz -18.0dB on 0.200s off 8.000s
call waiting tone #2: 450Hz -18.0dB on 0.200s off 0.600s
450Hz -18.0dB on 0.200s off 8.000s
special dial tone: 450Hz -18.0dB on 1.000s off 0.250s
howler tone: 1400+2060+2450+2600Hz -3.0dB on 0.100s off 0.100s
warning tone: 450Hz -18.0dB on 0.200s off 0.200s
450Hz -18.0dB on 0.600s off 0.200s
confirmation tone: 450Hz -18.0dB on 0.040s off 0.040s
holding tone: 440+480Hz -18.0dB on 0.500s off 0.500s
350+440Hz -18.0dB on 0.500s off 2.500s
Vietnam
Country Code: 43,Vietnam
law: alaw
impedance: 600ohm
loop current: 25 mA
tax type: metering
Ring parameters:
frequency: 20.0 Hz
amplitude: 53.0 Vrms
onTime1: 2.00 seconds
offTime1: 4.00 seconds
onTime2: 2.00 seconds
offTime2: 4.00 seconds

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