| http://www.w3.org/ns/prov#value | - ing/decoding of a speaking aural signal, a speaker 260 for reproducing a speaking aural signal, a microphone 261 for collecting a voice, a controller 270 for generally controlling the above elements, a memory 271 for storing controlling data and the like, a sounder 272 for issuing a ringing tone to notice a incoming call, an operation element 273 for entering various types of information such as a
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