Patent ID: 8553629

Claim:
A telephone device comprising: a telephone device main body with an access point configured integrally therewith; and a call device configured as a cordless handset of the telephone device main body, wherein: a wireless communication between the access point and a terminal device is conducted according to the IEEE802.11n standard; the access point and the terminal device are configured to communicate with each other by using a first bandwidth of 2.4 GHz; the access point and the terminal device also are configured to communicate with each other by using a second bandwidth of 5.0 GHz; the telephone device is configured to be connected with an external telephone device via a PSTN; the telephone device main body and the call device are configured to communicate with each other by using the first bandwidth when the call device communicates with the external telephone device via the telephone device main body; the telephone device main body and the call device are not configured to communicate with each other using the second bandwidth; the telephone device main body comprises: a first communication unit configured to communicate wirelessly with the call device by using the first bandwidth, a second communication unit configured to communicate with the access point, and a call start operation detecting unit configured to detect an execution of a call start operation on the call device; and when a specific wireless communication using the first bandwidth starts between the call device and the telephone device main body due to the execution of the call start operation being detected, the second communication unit is configured to send a first instruction to the access point to limit a bandwidth used by the access point to the second bandwidth, and the bandwidth used by the access point is not limited to the second bandwidth when the specific wireless communication using the first bandwidth is not conducted between the call device and telephone device main body.