There are provided a code reading unit for reading a code in a portable terminal, a first terminal side operating environment setting unit for analyzing a code, thereby acquiring first operating environment setting information required for connection to a relay device through Bluetooth and setting the first operating environment setting information to the portable terminal, a setting information generating unit 4 for generating second operating environment setting information required for connection to a telephone call control server through a wireless LAN to make a call, a second terminal side operating environment setting unit for setting the second operating environment setting information thus generated to the portable terminal, and transmitting the second operating environment setting information to the telephone call control server and registering the second operating environment setting information therein.
