Communication device, and non-transitory computer-readable recording medium storing computer-readable instructions for communication device

A communication device comprising:

• a wireless interface configured to execute a wireless communication according to a Near Field Communication (NFC) scheme;
• a processor;
• and
• a main memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the communication device to:
• acquire detection information from the wireless interface in a case where a polling signal is received from a specific external device in the wireless interface under a state where at least a Peer to Peer (P2P) mode of the NFC scheme is enabled;
• and
• supply a specific signal to the wireless interface in a case where the detection information is acquired from the wireless interface in which at least the P2P mode is enabled, the specific signal being for causing the wireless interface to achieve a state where the P2P mode is disabled and at least one mode of a Card Emulation (CE) mode and a Reader Writer (R/W) mode of the NFC scheme is enabled,
• wherein the wireless interface is configured to repeat operating sequentially in a plurality of states including a first state and a second state,
• the first state is a state where the wireless interface sends a first polling signal over a first predetermined time period, the first polling signal being for establishing a wireless link with an external device,
• the second state is a state where the wireless interface waits for receiving a second polling signal over a second predetermined time period, the second polling signal being for establishing a wireless link with the communication device and being sent from an external device,
• the detection information is acquired from the wireless interface in a case where the wireless interface, receives the second polling signal from the specific external device in the second state where at least the P2P mode is enabled, and
• the specific signal is for causing the wireless interface to achieve a state where the P2P mode is disabled and the CE mode is enabled in the second state.

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

• the communication device comprising:
• a wireless interface configured to repeat to operate sequentially in a plurality of states including a first state and a second state, the first state being a state where the wireless interface sends a first polling signal over a first predetermined time period, the first polling signal being for establishing a wireless link with an external device, the second state being a state where the wireless interface waits for receiving a second polling signal over a second predetermined time period, the second polling signal being for establishing a wireless link with the communication device and being sent from an external device;
• and
• a processor,
• wherein the computer-readable instructions, when executed by the processor, cause the communication device to:
• acquire detection information from the wireless interface in a case where the wireless interface operating in the second state receives the second polling signal from a specific external device;
• and
• supply a specific signal to the wireless interface in a case where the detection information is acquired from the wireless interface operating in the second state, the specific signal being for causing the wireless interface to use, as a duration time period of the second state, a specific time period instead of the second predetermined time period, the specific time period being longer than the second predetermined time.