AT&T 2U20 - Manual (Page 24)

However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct interference by one or more of the following measures:
●
●
●
●
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is needed.
Consult the dealer or an experienced radio/TV technician for help.
FCC Requirements - Part 68
The Federal Communications Commission (FCC) has established Rules which permit
this device to be directly connected to the telephone network. Standardized jacks are used
for these connections. This equipment should not be used on party lines or coin phones. 1.
2.
3.
4.
If this device is malfunctioning, it may also be causing harm to the telephone network;
this device should be disconnected until the source of the problem can be determined
and until repair has been made. If this is not done, the telephone company may
temporarily disconnect service.
The telephone company may make changes in its technical operations and procedures;
if such changes affect the compatibility or use of this device, the telephone company is
required to give adequate notice of the changes. You will be advised of your right to file
a complaint with the FCC.
If the telephone company requests information on what equipment is connected to their
lines, inform them of:
a.
b.
c.
d.
The telephone number to which this unit is connected.
The ringer equivalence number.
The USOC jack required (RJ-11C).
The FCC Registration Number.
Items (b) and (d) are indicated on the label. The Ringer Equivalence Number (REN) is
used to determine how many devices can be connected to your telephone line. In most
areas, the sum of the RENs of all devices on any one line should not exceed five (5.0).
If too many devices are attached, they may not ring properly.
Service Requirements
In the event of equipment malfunction, all repairs should be performed by AT&T or
an authorized agent. It is the responsibility of users requiring service to report the
need for service to AT&T or to one of its authorized agents. Service can be obtained
as noted in the Warranty Information section.
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