| 摘要 |
PROBLEM TO BE SOLVED: To enable a safe remote access use by general telephone number setting.SOLUTION: A GW device 1 includes: a terminal telephone number storage 11 for storing a terminal telephone number allocated to a terminal 2; a modem function unit 12 for transmitting to the terminal 2 connection information for VPN connection through voice when a telephone call to the GW device 1 is originated and if an originating number reported to the GW device 1 coincides with the terminal telephone number stored in the terminal telephone number storage 11; and a VPN function unit 13 for performing VPN connection with the terminal 2 using the connection information. The terminal 2 includes: a modem function unit 21 for originating a telephone call and receiving the connection information transmitted through voice; and a VPN function unit 22 for performing VPN connection with the GW device 1 using the connection information. |
