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Chapter 3 System Menu
3.9.4 ECHO TESTS
These echo tests are used for verifying connectivity to make sure the mobile computer is
within coverage. Press [ESC] to stop and exit the test.
SPP: Serial Port Profile
It is used for ad hoc networking.
DUN: Dial-Up Networking Profile
DUN Modem - It makes use of a Bluetooth modem or mobile phone as a
wireless modem.
DUN GPRS – It makes use of a mobile phone with GPRS functionality and
connects to GPRS AP.
HID: Human Interface Device Profile
It is used for the mobile computer to work as an input device, i.e.
keyboard, for a host computer.
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