| http://www.w3.org/ns/prov#value | - With regard to how to leave data in the call register, the present invention particularly allows a user of a cellular phone or a communication apparatus to set how to leave data in the call register based on an user's definition, for example, by setting the case in which a caller's phone number should be left in the call register or the case in which even the incoming-call history is not left in t
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