Polycom Viewstation MP - Manual (Page 90)

System Information
90 ViewStation User’s Guide
Far-End Loop
The Far-End Loop screen allows you to test the communication quality from
point to point. However, this only works while you are in a call. To stop the
loop, press any button on the remote. Then highlight the Menu icon to return to
the Diagnostics screen.
Reset System
The Reset System screen is used to clear existing system configurations.
Resetting the system erases your admin password and all user settings except
your address book entries. Before you can reset your system, however, you must
enter the serial number of your ViewStation. This prevents the casual user from
performing an unintentional reset. You can find the serial number on the System
Info screen.