Telephone, telephone security control method, telephone security control program and program recording medium

摘要

Disclosed is a telephone to be installed in a house or an office and capable of effectively preventing leakage of data stored in or unauthorized use of the telephone. For this end, a security button 15 is provided for inhibiting the use of all or a part of the stored data in or functions of the telephone. The security button 15 enables the user to set the security condition by a single push-down operation or choose desired security levels by continuous operations. An LED may be installed in the security button 15 to emit light in different colors or patterns for respective security levels.