You can remotely access, diagnose, and maintain plants and / or machines anywhere in the world with S7-TeleService. This combination software package and hardware adapter works with any commercially available communication device (such as Hayes compatible modems) to remotely provide the full functionality of a local programming interface. S7-TeleService can be used for remote data coupling - the transferring of control data over the telephone network. S7-TeleService supports the SIMATIC software packages: STEP 7 and the Engineering Tools, WinCC Flexible, and WinCC, as well as the SIMATIC hardware platforms S7-300, S7-400, WinAC, and SIMATIC HMI Panels.