Siemens 120 Series, Руководство пользователя

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B-2 ROLMphone 120/240/400 Series User Guide
Self Test
The Self Test should be the initial step in troubleshooting problems
with ROLMphone 120/240/400 series telephones. The purpose of the
Self Test is to perform an internal check of the telephone. A successful
Self Test causes all status lights to flicker briefly, and the display, if
present, to light for one second.
Begin the Self Test
Unplug and replug the line cord from the telephone base and observe
the status lights and display. (The process of unplugging and
replugging the line cord from the telephone base is also referred to as
resetting the telephone.)
Note: Make sure the handset is in its cradle before running the Self
Test.
Evaluate the Self Test Results
See if the Self Test results match any of the problems listed below. If
so, follow the recommendations. If not, see if your problem is listed in
“Other Problems” on page B–2.
All the status lights flash, but the display does not light up.
The telephone has failed the Self Test. Call your system administrator
or the appropriate service personnel.
No status lights flash when the telephone is reset.
There is a problem with either the telephone base or the line cord.
Verify that the line cord is connected securely at both ends.
Other Problems
The dial tone is not audible through the handset, though
everything else works.
Verify that the handset cord is securely connected to both the handset
and the bottom of the phone.