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Parameter # Description Units
81 Call progress tone minimum off time. Minimum period of silence that must exist
between cadenced call progress tones if the tone sequence is to be valid.
Country Default
United States 150
Australia 275
France 350
Germany 200
Netherlands 150
United Kingdom 290
India 150
Korea 150
China 150
1 ms (0 ms
to 2000 ms)
82 Call progress tone maximum off time. Maximum period of silence that can exist
between cadenced call progress tones if the tone sequence is to be valid.
Country Default
United States 750
Australia 750
France 750
Germany 750
Netherlands 750
United Kingdom 600
India 750
Korea 750
China 750
1 ms (50 ms
to 4000 ms)
83 Call progress detect threshold. Sets the detection threshold for the call progress
tones. If the progress tones are below this level they will not be detected.
Country Default
United States 470 (–0.1 dBm)
Australia 370 (–0.1 dBm)
France 450 (–0.1 dBm)
Germany 430 (–0.1 dBm)
Netherlands 430 (–0.1 dBm)
United Kingdom 370 (–0.1 dBm)
India 470 (–0.1 dBm)
Korea 470 (–0.1 dBm)
China 470 (–0.1 dBm)
1 (260 to 510)
84 Call progress tone frequency 1. The center frequency for the first component of the
call progress tone.
Country
Default
United States 620
Australia 425
France 420
Germany 425
Netherlands 355
United Kingdom 400
India 620
Korea 620
China 620
1 Hz (100 Hz
to 1200 Hz)