Call progress tones: Finland

Table 1. Tone parameter values (Finland).

This table describes the characteristics of Finish call progress tones. For each different tone name (Dial Tone, Ring Tone, and Busy Tone) the minimum, nominal, and maximum frequency in Hertz is listed, followed by the minimum and maximum power ratios in decibels. Continuous tones are identified, and for discontinuous tones, details of the minimum, nominal, and maximum durations in milliseconds that the tone is on and off are listed.
Tone Name Tone Label Tone Type Frequency n (Hz) Level (dBm) Time On (ms) Time Off (ms)
      n Min Nom Max Min Max Min Nom Max Min Nom Max

Dial Tone

Dial

Dial

1

387

425

463

-30

-9

Continuous tone

Ring Tone

Ring

Ring

1

387

425

463

-40

-9

820

1000

1160

3380

4000

4620

Busy Tone

Busy

Busy

1

387

425

463

-40

-9

220

300

360

220

300

360