Radio telephone apparatus having automatic answering function for confidential messages

Claim 1

A radio telephone apparatus having an automatic answering function comprising: a radio unit; a speech memory connected to said radio unit, said speech memory being divided into a plurality of record areas, each area for storing an answer message; a correspondence table memory for storing a correspondence between stored identification numbers and said record areas; an identification number receiving circuit, connected to said radio unit, for receiving an identification number of a call to said telephone apparatus; a first control circuit connected to said radio unit and said correspondence table memory; and a second control circuit connected to said speech memory via a memory control unit, to said identification number receiving circuit and to said first control circuit, wherein said first control circuit includes means for determining if said radio unit is receiving a call, means for transmitting an identification number reception preparing signal to said second control circuit in response to a call being received by said radio unit, means for transmitting an identification number reception requesting signal to said second control circuit in response to said identification number reception preparing signal being received by said second control circuit, means for determining if said identification number of said call is located in said correspondence table memory, and means for transmitting an output indicating signal to said second control circuit if said identification number of said call is located in said correspondence table memory, and wherein said second control circuit includes means for transmitting a first message from said speech memory to said radio unit in response to said identification number reception preparing signal from said first control circuit, means for receiving said identification number of said call from said identification number receiving circuit in response to said identification number reception requesting signal from said first control circuit, and for transmitting said identification number of said call received from said identification number receiving circuit to said first control circuit, and means for transmitting a second message from said speech memory to said radio unit in response to said output indicating signal from said first control circuit, said second message being derived from one of said record areas which corresponds in said correspondence table memory to said identification number of said call.