This headset is connected to a cabinet that contains several modules connecting to different audio sources: an analog telephone line, an aircraft radio receiver, a PMR handheld radio, and even a ...

The original telephone technology, which was introduced in the late 1800s. Analog phones convert sound (air vibrations) into analogous electrical frequencies. Many homes and small offices still ...

Connecting to the modem, router or directly to the cable coming into the premises, the analog telephone adapter (ATA) delivers dial-tone, manages the call setup and provides the conversion between ...