In telephony, the term off-hook has the following meanings:
The condition that exists when a telephone or other user instrument is in use, i.e., during dialing or communicating.
One of two possible signaling states, such as tone or no tone and groundconnection versus battery connection. Note that if off-hook pertains to one state, on-hook pertains to the other.
In telephony, the term off-hook has the following meanings:
The condition that exists when a telephone or other user instrument is in use, i.e., during dialing or communicating.
One of two possible signaling states, such as tone or no tone and groundconnection versus battery connection. Note that if off-hook pertains to one state, on-hook pertains to the other.