call progress tones: Italy

Table 1. Tone parameter values (Italy).
This table describes the characteristics of Italian 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)
Tone Name	Tone Label	Tone Type	n	Min	Nom	Max	Min	Max	Min	Nom	Max	Min	Nom	Max
Ring Tone	Ring	Ring	1	387	425	463	-40	-3	820	1000	1160	3380	4000	4620
Network Busy	Network Busy	Busy	1	387	425	463	-40	-3	160	200	240	160	200	240
Busy	Busy	Busy	1	387	425	463	-40	-3	400	500	580	400	500	480

Call progress tones: Italy