
Appendix B PSTN Parameters by Country
IES-1248-51V User’s Guide
602
Meter parameters:
frequency: 12 kHz
onTime: 200 ms
offTime: 200 ms
Caller ID parameters:
CID type: during ring
payload type: SDMF
first TAS type: NULL
second TAS type: NULL
first TAS interval: 0 ms
second TAS interval: 0 ms
start to ring: 500 ms (prior ring only)
Tones parameters:
dial tone: 350+440Hz -13.0dB continuous
ring back tone: 440+480Hz -19.0dB on 1.000s off 2.000s
busy tone: 440+620Hz -24.0dB on 0.500s off 0.500s
reorder tone: 480+620Hz -24.0dB on 0.250s off 0.250s
congestion tone: 440+480Hz -18.0dB on 0.250s off 0.250s
special dial tone: 350+440Hz -13.0dB on 0.100s off 0.100s
350+440Hz -13.0dB on 0.100s off 0.100s
350+440Hz -13.0dB on 0.100s off 0.100s
350+440Hz -13.0dB continuous
call waiting tone #1: 440+480Hz -13.0dB on 1.500s
call waiting tone #2: 350Hz -13.0dB on 0.250s off 5.250s
MWI tone: 350+440Hz -13.0dB on 0.100s off 0.100s
Kommentare zu diesen Handbüchern