Sun Telecom ST800 User Manual page 23

This equipment has been tested and found to comply with the limits of a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to
radio communications. 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 the interference by one or more of the following measures:
Reorient/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.
Substitution of components may impair intrinsic safety.