Cortelco CENTURION EXTENDED BASIC TELEPHONE - Manual (Page 15)

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2)
this device must accept any interference received, includ-
ing interference that may cause undesired operation.
Warning: Changes or modifications to this unit not ex-
pressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to
comply with the limits for a CLASS B digital device, pursu-
ant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interfer-
ence in a residential installation. This equipment gener-
ates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions,
may cause harmful interference to radio communica-
tions. 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 equip-
ment off and on, the user is encouraged to try to correct
the interference by one or more of the following mea-
sures:
- 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 connected.
- Consult the dealer or an experienced radio TV
technician for help.