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[1] [2] Typically, the disconnect tone is a few cycles of the reorder, busy, or the off-hook tone (e.g. in US), or between five and fifteen seconds of the Number Unobtainable tone (e.g. in UK). On some telephone exchanges in the UK, the following audio message is looped for fifteen seconds, interspersed with special information tones (SIT), to ...
A busy signal (or busy tone or engaged tone) in telephony is an audible call-progress tone or audible signal to the calling party that indicates failure to complete the requested connection of that particular telephone call. The busy signal has become less common in the past few decades due to the prevalence of call waiting and voicemail.
In EU countries and those following ETSI (European Telecommunication Standards Institute) recommendations, the cadence is the same as North America, i.e. 0.25 seconds on / 0.25 seconds off, but with a 425 Hz tone. 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.
No matter which iPhone you use, you’ll invariably deal with a bad or no signal at some point. Kim Komando offers 5 ways to boost signal strength.
Inter-Tel Eclipse2 Associate Display and Basic Digital Phone Press "6" at the busy signal and hang up. Your phone will ring when the extension if available. Press "6" again to cancel before you get your callback. Isoetec Digital Systems Display/Data Phone Press "Cb." Soft key at the busy signal. Replace the handset or press "HF". Wait for the ...
The signal is applied to the local loop by the switching system for permanent signal treatment to alert an end user (subscriber) of an off-hook condition of the telephone set, i.e. that the telephone handset should be placed on-hook. Before playing the signal, a certain timeout has to elapse, and on some systems an intercept message is ...
The Do Not Disturb or (DND) function on most PBX or PABX systems prevents calls from ringing on an extension for which DND is activated. Some Do Not Disturb (DND) attributes include directing the call to a preassigned extension (like a secretary or assistant), busy signal, DND signal, or recorded message generated by the telephone switch.
If the called station is already busy and cannot accept a second call via call waiting, the calling party is alerted with a busy signal. When the call routing is successful and the receiving telephone is not already in a call, the destination telephone receives an electrical signal, called power ringing , or the ring tone , to alert the ...