Data Packet limitation due to mobile service providers' Fair Usage Policy (Policy for fair use of data communication)
Flat-rate data communication products such as "Mobile Wi-Fi rental" and Wi-Fi router products with a phone function such as "Smartphone rental", use the local network and provide sufficient data capacity to general usage. However, for the fair use of telecommunications and the high quality of the network, mobile service providers all over the world set a limit on data communication if a user consumes a large amount of data in a short period. In such a case, the internet may be unable to connect or network speed may considerably slow down. The service charge will still accrue even if the above-mentioned network limitation occurs.