Apparatus for transmitting and receiving signals

摘要

An apparatus is provided that includes a data controller, a subscriber line audio-processing circuit, and a controller. The data controller includes an input terminal and an output terminal capable of providing packet data. The subscriber line audio-processing circuit is capable of providing signals in a voice band. The controller is capable of transmitting at least one of signals in the voice band from the subscriber line audio-processing circuit and the packet data from the output terminal of the data controller.