MOBILE PHONE DEVICE, CONTROL METHOD FOR ACTIVATING A REMOTE OPERATION FUNCTION BY A MOBILE PHONE DEVICE, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

1 . A mobile phone device comprising:

a wireless communication unit;

a telephone function unit configured to perform at least a voice telephone call via the wireless communication unit;

a remote operation function unit configured to accept a remote operation on the mobile phone device from an external; and

a control unit configured to control the remote operation function unit to allow accepting the remote operation on the condition that a telephone call using the telephone function unit is initiated with a predetermined counterparty that is permitted for the remote operation, and also control the remote operation function unit to stop accepting the remote operation on the condition that the telephone call with the predetermined counterparty is terminated.

2 . The mobile phone device according to claim 1 , wherein the control unit determines whether a call counterparty of the telephone function unit is the predetermined counterparty by referring to identification information of the call counterparty.

3 . The mobile phone device according to claim 2 , wherein

the identification information includes a telephone number,

the mobile phone device further comprises telephone book data storage unit configured to store permission information indicating whether or not the remote operation is permitted in association with the telephone number, and

when the telephone number of the call counterparty of the telephone function unit is recorded on the telephone book data storage unit in association with the permission information indicating that the remote operation is permitted, the control unit determines that the call counterparty of the telephone function unit is the predetermined counterparty.

4 . The mobile phone device according to claim 1 , wherein the control unit allows accepting the remote operation by launching a computer program for accepting the remote operation and bringing the computer program to a ready state for execution, and stops accepting the remote operation by bringing the computer program to a dormant state in which a processor resource is not allocated to the computer program.

5 . A control method for activating a remote operation function by a mobile phone device comprising:

allowing acceptance of a remote operation on the mobile phone device from an external on the condition that a telephone call using telephone function unit of the mobile phone device is initiated with a predetermined counterparty that is permitted for the remote operation; and

stopping the acceptance of the remote operation on the condition that the telephone call with the predetermined counterparty is terminated.

6 . The method according to claim 5 , further comprising determining whether or not a call counterparty of the telephone function unit is the predetermined counterparty by referring to identification information of the call counterparty.

7 . The method according to claim 6 , wherein

the identification information includes a telephone number, and

said determining includes determining that the call counterparty of the telephone function unit is the predetermined counterparty when the telephone number of the call counterparty of the telephone function unit is recorded as telephone book data arranged in the mobile phone device in association with permission information indicating that the remote operation is permitted.

8 . The method according to claim 5 , wherein

said allowing includes launching a computer program for accepting the remote operation and bringing the computer program to a ready state for execution, and

said stopping includes bringing the computer program to a dormant state in which a processor resource is not allocated to the computer program.

9 . A non-transitory computer readable medium storing a program for causing a computer to execute the method according to claim 5 .