Tones
The following call progress tones are generated by the system:
TONE | FREQUENCY | PATTERN (In Milliseconds) | |||
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Busy Tone | 480 Hz + 620 Hz | 500 on, 500 off; repeated | |||
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Confirmation Tone | 350 HZ + 440 HZ | 100 on, 100 off, l00 on, l00 off, | |||
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| l00 on followed by silence | |
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Dial Tone |
| 350 HZ + 440 HZ | Continuous | ||
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Reorder Tone | 480 | Hz + 620 Hz | 250 | on, 250 off; repeated | |
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Ringback | Tone | 440 | Hz + 480 Hz | 1200 on, 4000 off; repeated | |
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Call Waiting | 440 | Hz | 200 | on; not repeated | |
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Recall Dial Tone | 350 | Hz + 440 Hz | 100 | on, 100 off, 100 on, 100 off, | |
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| 100 | on, 100 off, followed by |
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| continuous tone | |
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Preferred | Route | 440 Hz | Five 50 ms tones, 50 ms apart, | ||
(Queuing) | Tone (ARS) |
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| not | repeated |
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Indicator Lamp Signals
The following lamp signals are provided at multiline voice terminal line appearances:
LAMP SIGNAL | PATTERN (In Milliseconds) | MEANING |
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Dark | Off | Inactive |
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Lighted | On |
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Flashing | 500 on, 500 off; repeated | Ringing |
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Broken | 50 on, 50 off; repeated, | Transfer/Conference |
Fluttering | (gated on/off every 500 ms) | in progress |
Wink
350 on, 50 off; repeated
Hold
5 - 9
