PHONE SOUNDS Stutter Dial Tone A Australia Callprogress tones Sound effects SFX

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CALL-PROGRESS TONES: STUTTER DIAL TONE A (Australia) • • STUTTER DIAL TONE: a dial tone with a stutter or intermittent pulse. It means you have a new message on your MessageBank or Home Messages 101 service. • This tone is indicative of the Australian PSTN. Centrex services provided by some carriers and carriage service providers may apply tones with different cadences in some circumstances. • Frequency in Hz: 425, amplitude modulated by a 25 Hz tone. Modulation index must be greater than 90% (95% in this example). • Cadence in seconds: 0.1 on 0.04 off repeated for at least 10 seconds. • • Source: ETSI TR 101 041-2 V1.1.1 (1997-05) Technical Report. • AUSTRALIAN STANDARD AS/CA S002:2010 • • • • #phone #tones #signals #signal #call #stutter #dial #tone #callprogresstones #stutterdialtone #australia #sound #effects #sfx

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