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Note: if on-hook pertains to one state, off-hook pertains to the other. The idle state, i.e., an open loop of a subscriber line or PBX user loop. An operating state of a telecommunication circuit in which transmission is disabled and a high impedance , or "open circuit ", is presented to the link by the end instrument (s).
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 ...
"This is a recording. Please hang up. There appears to be a receiver off the hook. Please check your main telephone and extensions, then try your call again. Thank you." The message may be repeated, then followed by a loud, rasping off-hook tone intended to remain audible even if the handset is on the desktop instead of at the subscriber's ear ...
House hunters: It's time to get ready. ‘My phone started ringing off the hook’: Real estate agents report an unprecedented surge in calls from interested buyers post-Christmas.
English: Dolch sight words from Pre-primary through 3rd Grade levels along with their phonetic Hindi counterparts. This is very useful for teaching correct pronounciation of essential english words to anyone familiar with the Hindi / devnagri script. Parents who don't know english can use this to teach the english words to their kids.
A dial tone (dialling tone in the UK) is a telephony signal sent by a telephone exchange or private branch exchange (PBX) to a terminating device, such as a telephone, when an off-hook condition is detected. It indicates that the exchange is working and is ready to initiate a telephone call. The tone stops when the first dialed digit is recognized.
off one's trolley or off one's rocker: Crazy, demented, out of one's mind, in a confused or befuddled state of mind, senile [l] [64] off the hook: To escape a situation of responsibility or obligation, or, less frequently, danger [65] the oldest trick in the book: An effective way of tricking someone even though it is a very popular method [66]
Many ringdown circuits work in both directions. In some cases a circuit is designed to work in one direction only. That is, going off-hook at one end (end A) rings the other (end B). Going off-hook at end B has no effect at end A. Ringdown features are often part of a key telephone system.