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Equipment Notes:
Your IBM-412 telephone is registered with the Federal Communications Commission and is in compliance
with Part 15J and Part 68 of the FCC Rules and Regulations. On the bottom of this equipment is a label indi-
cating among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for
the equipment. You must, upon request, provide this information to your telephone company. The REN is
useful to determine the number of devices you may connect to your telephone line and still have all devices
ring when your telephone number is called. In most cases (but not all areas), the sum of the REN’s of all the
devices connected to one line should not exceed (5) five. The IBM-412 telephone utilizes high sensitivity
ringer circuits which will function reliably with up to twelve telephones installed.
v The IBM-412 telephone cannot be used with coin service pay service telephones.
v The IBM-412 telephone cannot be connected to a party line service..
v The IBM-412 telephone is Hearing Aid Compatible.
If you experience trouble with this telephone equipment, disconnect it from the telephone network until the
problem has been corrected. The telephone company may discontinue service if the telephone is deter-
mined to cause harm to the telephone network. In this case, the telephone company will:
v If possible, notify the customer in advance that the service is being discontinued.
v Provide the customer with the opportunity to correct the situation.
v Inform the customer of their right to file a complaint with the FCC.
Your local telephone company may make changes in its facilities, equipment, operations or procedures that
could affect the proper functioning of your equipment. If they do, you will be notified in advance to give you
an opportunity to maintain uninterrupted telephone service.
Interference Information
This equipment generates, uses and can radiate low level radio frequency energy. It has been tested and
found to comply with the limits for a Class B digital device in accordance with the specifications in Part 15J of
the FCC Rules, which are designed to provide reasonable protection against such interference in a residential
installation. If this equipment does cause interference to radio or television reception, which can be deter-
mined by unplugging it from the telephone line. If the interference is caused by the IBM-412, the user is en-
couraged to try to correct the interference by one or more of the following measures:
v Reorient the radio or TV receiving antenna.
v Relocate this device with respect to the receiver.
v Move this device away from the receiver.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional
suggestions. The user may find the following booklet, prepared by the Federal Communications Commis-
sion, helpful. This booklet is available from the U.S. Government printing Office. There may be a charge for
this booklet.
"How to Identify and Resolve Radio-TV Interference Problems"
U.S. Government Printing Office
Washington, D.C. 20402
Stock Number. 004-000-00345-4
FCC INFORMATION