Data transmission service of the flat-rate schedule which the DDI pocket (present Will COM)startedin 2001 June, uses the PHS communication network. The 64kbps communication with circuit switching system (PIAFS) with,it has reachedthe point where it changes automatically the 32kbps communication with packed switching system according to the data quantity. Full speed is expanded to 128kbps afterwards.

Besides the fact that it can utilize even with current fee plan, fee plan of AirH "business to be prepared, plan of complete flat rate system available.As for offer ingcomplete fixed amount plan with mobile communication in the country is AirH "unprecedented.

AirH to "Internet serviceprovider(ISP) to for servicing which offers the communications network,reallyto do Internet connection, it is necessary to make a contractISP which corresponds AirH" separately.