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Not all telephone headsets are compatible with all telephone models. Because headsets connect to the telephone via the standard handset jack, the pin-alignment of the telephone handset may be different from the default pin-alignment of the telephone headset. To ensure a headset can properly pair with a telephone, telephone adapters or pin ...
They were also used for low-voltage DC power input from wall adapters. In the latter role, they were soon replaced by coaxial DC power connectors. 2.5 mm phone jacks have also been used as headset jacks on mobile telephones (see § Mobile devices).
The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]
Telephone headsets connect to a fixed-line telephone system. A telephone headset functions by replacing the handset of a telephone. Headsets for standard corded telephones are fitted with a standard 4P4C commonly called an RJ-9 connector. Headsets are also available with 2.5 mm jack sockets for many DECT phones and other applications.
Phone connector, phone plug, or phone jack may refer to: Telephone plug , used to connect a telephone to the telephone wiring in a home or business, and in turn to a local telephone network Phone connector (audio) , an audio jack, jack plug, stereo plug, mini-jack, mini-stereo, or headphone/phone jack
Answer call: enables the user to answer a call from the headset. End call: enables the user to hang up a call from the headset. Ringtone in headset: headset plays a ringtone when the phone receives a call. Volume control: enables the user to control volume from headset. Mute control: enables the user to toggle mute between on and off.