Communication device

A non-transitory computer-readable recording medium storing computer-readable instructions for a communication device,

• wherein the computer-readable instructions, when executed by a processor of the communication device, causing the communication device to:
• receive a first specific signal from a terminal device via an NFC (abbreviation of Near Field Communication) interface in a case where the NFC interface operates in a Reader mode of NFC standard and the terminal device operates in a CE (abbreviation of Card Emulation) mode of the NFC standard, the NFC interface being configured to perform a wireless communication according to the NFC standard;
• determine whether the first specific signal includes install information which indicates that a predetermined application has been installed in the terminal device;
• change an operation mode of the NFC interface from the Reader mode to the CE mode in a case where it is determined that the first specific signal does not include the install information;
• change the operation mode of the NFC interface from the Reader mode to the Writer mode in a case where it is determined that the first specific signal includes the install information;
• supply first identification information to the NFC interface in a case where the NFC interface operates in the CE mode, the first identification information being for identifying the predetermined application and for the terminal device to install the predetermined application, wherein the NFC interface sends the first identification information to the terminal device in a case where the NFC interface operates in the CE mode and the terminal device operates in the Reader mode;
• and
• supply specific information different from the first identification information to the NFC interface in a case where the NFC interface operates in the Writer mode, wherein the NFC interface sends the specific information to the terminal device in a case where the NFC interface operates in the Writer mode and the terminal device operates in the CE mode.

A method performed by a communication device, the method comprising:

• receiving a first specific signal from a terminal device via an NFC (abbreviation of Near Field Communication) interface in a case where the NFC interface operates in a Reader mode of NFC standard and the terminal device operates in a CE (abbreviation of Card Emulation) mode of the NFC standard, the NFC interface being configured to perform a wireless communication according to the NFC standard;
• determining whether the first specific signal includes install information which indicates that a predetermined application has been installed in the terminal device;
• changing an operation mode of the NFC interface from the Reader mode to the CE mode in a case where it is determined that the first specific signal does not include the install information;
• changing the operation mode of the NFC interface from the Reader mode to the Writer mode in a case where it is determined that the first specific signal includes the install information;
• supplying first identification information to the NFC interface in a case where the NFC interface operates in the CE mode, the first identification information being for identifying the predetermined application and for the terminal device to install the predetermined application, wherein the NFC interface sends the first identification information to the terminal device in a case where the NFC interface operates in the CE mode and the terminal device operates in the Reader mode;
• and
• supplying specific information different from the first identification information to the NFC interface in a case where the NFC interface operates in the Writer mode, wherein the NFC interface sends the specific information to the terminal device in a case where the NFC interface operates in the Writer mode and the terminal device operates in the CE mode.