Business phone glossary

Our glossary explains basic terms and abbreviations relating to mobile working, the use of smartphones and tablets in the corporate environment (Enterprise Mobility) and security aspects in the use of mobile devices.




Interface equipment of a terminal device

Connectivity refers to the equipment of hardware interfaces in smartphones and tablets. More generally, the term refers to interfaces between physical systems in electrical engineering.

Hardware interfaces are based on industry standards that ensure that electronic components from different manufacturers work together, for example a router and a WLAN module in a mobile device.

Typical interfaces in smartphones/tablets

The following hardware interfaces are commonly found in mobile devices:

  • WiFi
    (wireless Internet access)
  • 2G
    (GSM mobile communications standard)
  • 3G
    (UMTS mobile communications standard)
  • 4G
    (LTE mobile communications standard)
  • 5G
    (mobile communications standard)
  • Bluetooth
    (wireless data transmission)
  • NFC
    (near field communication)
  • USB
    (Universal Serial Bus, cable-based data and power transmission)
  • SIM card
    (identification in the mobile network)