Cortelco 9120 User Manual

6

14.

Unplug the telephone from the wall outlet and refer servicing to qualified service
personnel under the following conditions:

•

When the line cord is frayed or plugs damaged.

•

If liquid has been spilled into the telephone.

•

If the telephone has been exposed to rain or water.

•

If  the telephone does not operate properly by following the operating
instructions. (Adjust  only those controls covered by the  operating
instructions. Improper adjustment of other controls may result in
damage and will often require extensive work by a qualified
technician to restore the product to  normal operation.)

•

If the telephone has been dropped or the housing damaged.

•

If the telephone exhibits distinct change in performance.