Siemens S7-1200 Operating Instructions Manual page 25

TeleService with TeleService gateway (via LAN)
The connection between the engineering station and S7 station is via the TeleService
gateway.
The engineering station is connected to the TeleService gateway via LAN.
Figure 1-5
CP 1243-7 LTE
Operating Instructions, 01/2015, C79000-G8976-C381-01
TeleService via the mobile wireless network with TeleService gateway - connection via
LAN
Application and properties
1.6 Configuration examples
25