Siemens SIMATIC NETS7-1200 Operating Instructions Manual page 18

Application and properties
1.7 Configuration examples
● Configuration without telecontrol server:
18
The connection runs via the TeleService gateway.
The connection between the engineering station and the TeleService gateway can be
local via a LAN or via the Internet.
Figure 1-5 TeleService via GPRS in a configuration with TeleService gateway
Operating Instructions, 09/2011, C79000-G8976-C247-02
CP 1242-7