![]() A telephone amplifier provides basic pin-alignment similar to a telephone headset adapter, but it also offers sound amplification for the microphone as well as the loudspeakers. Some of these adapters also provide mute function and switching between handset and headset.įor older models of telephones, the headset microphone impedance is different from that of the original handset, requiring a telephone amplifier to impedance-match the telephone headset. To ensure a headset can properly pair with a telephone, telephone adapters or pin-alignment adapters are available. 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. Not all telephone headsets are compatible with all telephone models. They are also used by anyone wishing to hold telephone conversations with both hands free. Headsets are widely used for telephone-intensive jobs, in particular by call centre workers. Cordless bluetooth headsets are available and often used with mobile telephones. ![]() Headsets are also available with 2.5mm jack sockets for many DECT phones and other applications. Headsets for standard corded telephones are fitted with a standard 4P4C commonly called an RJ-9 connector. A telephone headset functions by replacing the handset of a telephone. Telephone headsets connect to a fixed-line telephone system.
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