There are provided a code reading unit 1 for reading a code in a portable terminal 10, a first terminal side operating environment setting unit 2 for analyzing a code, thereby acquiring first operating environment setting information required for connection to a relay device 20 through Bluetooth and setting the first operating environment setting information to the portable terminal 10, a setting information generating unit 4 for generating second operating environment setting information required for connection to a telephone call control server 400 through a wireless LAN to make a call, a second terminal side operating environment setting unit 5 for setting the second operating environment setting information thus generated to the portable terminal 10, and transmitting the second operating environment setting information to the telephone call control server 400 and registering the second operating environment setting information therein, a setting information transmitting unit 6 for transmitting the second
