About: Signal tone

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A signal tone or signalling tone (or signaling tone) is a steady or pulsating periodic sound (not necessarily a pure tone) used to indicate a condition, for example on a telephone line or as an audible warning. In telephone systems, signaling tones are used as call progress tones for in-band indications to subscribers. Certain telephone switching systems used tones, in-band or out-of-band, for signaling on trunks. Subscribers may choose to subscribe to additional services, such as call forwarding, which may indicate function by a stutter dial tone.

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  • Ein Signalton ist ein Ton, der einen Menschen auf ein Ereignis hinweist. Er signalisiert eine bestimmte Nachricht, meistens eine Alarmierung, eine Anrufsignalisierung oder ein Warnsignal (z. B. die Warnung vor einer unmittelbar bevorstehenden Sprengung). Signaltöne können durch Instrumente, Personen oder durch technischer Art abgegeben werden. (de)
  • A signal tone or signalling tone (or signaling tone) is a steady or pulsating periodic sound (not necessarily a pure tone) used to indicate a condition, for example on a telephone line or as an audible warning. In telephone systems, signaling tones are used as call progress tones for in-band indications to subscribers. Certain telephone switching systems used tones, in-band or out-of-band, for signaling on trunks. Typical well-known call progress tones are dial tone, ringing tone, busy tone, and the reorder tone. A loud stutter tone is used to alert subscribers of a handset left off-hook, effectively disabling the circuit for receiving calls. Subscribers may choose to subscribe to additional services, such as call forwarding, which may indicate function by a stutter dial tone. (en)
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  • Ein Signalton ist ein Ton, der einen Menschen auf ein Ereignis hinweist. Er signalisiert eine bestimmte Nachricht, meistens eine Alarmierung, eine Anrufsignalisierung oder ein Warnsignal (z. B. die Warnung vor einer unmittelbar bevorstehenden Sprengung). Signaltöne können durch Instrumente, Personen oder durch technischer Art abgegeben werden. (de)
  • A signal tone or signalling tone (or signaling tone) is a steady or pulsating periodic sound (not necessarily a pure tone) used to indicate a condition, for example on a telephone line or as an audible warning. In telephone systems, signaling tones are used as call progress tones for in-band indications to subscribers. Certain telephone switching systems used tones, in-band or out-of-band, for signaling on trunks. Subscribers may choose to subscribe to additional services, such as call forwarding, which may indicate function by a stutter dial tone. (en)
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  • Signalton (de)
  • Signal tone (en)
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