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The UK reorder tone uses a 400 Hz tone with a cadence of 0.4 seconds on, 0.35 seconds off, 0.225 seconds on, 0.525 seconds off. In some instances the Number Unobtainable Tone may be used instead. This is a continuous, uninterrupted 400 Hz tone.
The reorder tone, also known as the fast busy tone, or the congestion tone, or all trunks busy (ATB) tone is an audible call progress tone in the public switched telephone network (PSTN) that is returned to a calling party to indicate that the call cannot be processed through the network.
Tone cadence Dial tone A: 425 Hz: continuous Dial tone B: 425 Hz, amplitude modulated by 25 Hz: continuous Dial tone C: 400 Hz + 425 Hz + 450 Hz: continuous Dial tone D: 400 Hz + 425 Hz: continuous Dial tone E: 413 Hz + 438 Hz: continuous Ringback tone A: 425 Hz, amplitude modulated by 25 Hz: 0.4 s on, 0.2 s off, 0.4 s on, 2 s off Ringback tone ...
Low tone, also busy tone, is defined as having frequency components of 480 and 620 Hz at a level of −24 dBm and a cadence of one half second ON and one half second OFF. Reorder tone, also often called fast busy tone, is the same tone, but with a cadence of 0.25 of a second ON and 0.25 of a second OFF. The original plan had two slightly ...
In the United Kingdom, the busy tone is a single 400 Hz tone with equal 0.375 s on/off periods. This was the case even when the UK was still part of the EU. The current 400 Hz/375ms tone was adopted in the mid-to-late 1960s and replaced the older busy tone, which was the same 400 Hz signal but at half the pulse duration, 0.75 s on, 0.75 s off.
A Canadian woman was arrested after trying to smuggle over 20 pounds of methamphetamine through a New Zealand airport, authorities said. The illicit drugs were disguised as Christmas presents, New ...
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In the first Cadence Section, The duration is 2 seconds and the tone has only 1 subsections In the only subsection the tone is on for 0.2 seconds, off for 0.2 seconds, and composed of both the Frequency components 1 and 2 (350 Hz and 440 Hz) In the second Cadence Section, The duration is 10 seconds and again the tone has only 1 subsections