AT&T Unix Owner's Manual page 29

WARNING
This equipment has been certified to comply with the limits for a Class B
computing device, pursuant to Subpart J of Part 15 of FCC Rules. Only peripherals
(computer input/output devices, terminals, printers, etc.) certified to comply with
the Class B limits may be attached to this computer. Operation with non-certified
peripherals is likely to result in interference to radio and TV reception.
This equipment is registered with the Federal Communications Commission (FCC)
in accordance with Part 68 of its Rules. In compliance with the rules, be advised of
the following:
Connection of registered equipment to the telephone network must be through a
standard network interface jack, USOC RJ12C. Jacks can be ordered from the local
telephone company or through AT&T Information Systems as an authorized agent.
Registered equipment may not be used with Coin Telephone Lines. Equipment
may be used with Party Lines in areas where state tariffs permit such connections
and when equipment is adaptable for such use.
Before equipment is connected to the telephone network, the local telephone
company must be notified and provided with the following:
• The particular line or lines to which equipment is to be connected.
• The registration number and Ringer Equivalence Number (REN)
from the label on the equipment.
• The type of jack(s) to be ordered.
The local telephone company must also be notified upon final disconnection of
the equipment from the line or lines.
If trouble is experienced, the equipment should be disconnected (unplugged) from
the network interface to determine if the equipment or the telephone line is the
trouble source. If the equipment is determined to be malfunctioning, it should not
be reconnected until repairs are completed.
Repairs to this equipment, other than routine repairs, can only be made by AT&T
Information Systems and their authorized agents.
If the equipment causes harm to the telephone network, the local telephone
company may temporarily discontinue your service and, if possible, notify you
in advance. If advance notice is not practical, you will be notified as soon as
possible. You will be given the opportunity to correct the problem and informed
of your right to file a complaint with the FCC.