Telephone line deporting device, has one transmission direction separation unit ensuring transmission of signal in voice band and ringing signal in electrical transparency, and another separation unit restoring both signals

摘要

The device has a network interface (1) and terminal equipment respectively with two separation units for the separation of two transmission directions. The separation unit (15) is arranged to ensure transmission of a signal in voice band and a ringing signal in electrical transparency. Another separation unit is arranged to restore the signal in voice band and the transmitted ringing signal.