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Your IBM-412/CID telephone has been designed to give years of trouble free service. It is a sensitive
electromechanical instrument. To assure its longevity, please read the following maintenance instruc-
tions.
1. Keep the IBM-412/CID away from heat as high temperatures can shorten the life of the electrical
components and distort or melt its plastic parts.
2. The IBM-412/CID should be kept free of dust and moisture. If it gets wet, wipe it dry immediately.
Liquids can contain minerals that can corrode electronic circuits.
3. Handle your IBM-412/CID gently and carefully. Dropping it can cause serious damage to circuitry, or
the plastic case, which may result in causing it to malfunction.
4. Do not use any type of chemical or any abrasive powder to clean the cabinet. Use only mild deter-
gents on a soft, damp cloth to clean the IBM-412/CID telephone.
5. The IBM-412/CID has built-in surge protection circuits that meet or exceed FCC requirements.
However, an incident such as a lightning strike at or near the telephone lines, could cause serious
damage.
6. If the IBM-412/CID is installed in an area with frequent or severe electrical storms, it is suggested
that the telephone be disconnected during these storms or that additional surge suppression equip-
ment be added to the installation.
7. In the case of trouble with the telephone, do not attempt to repair the telephone yourself. It is the
responsibility of users requiring service to report the need for service to our Service Department.
They will make the necessary arrangements for repair or replacement.
8. If you should have any questions about the operation of your IBM-412/CID telephone, please call
our Service Department at 1-800-288-1683, between the hours of 8:30 A.M. and 7:00 P.M. Eastern
time. Or you may contact TT Systems LLC for technical assistance via our Internet Website:
http://
www.support@aastra.com
.
CARE AND MAINTENANCE