Siemens MXL-IQ Operation, Installation, And Maintenance Manual page 179

WARNING:
This equipment generates, uses, and can radiate radio fre-
quency energy and if not installed and used in accordance
with the instructions manual, may cause interference to radio
communications. It has been tested and found to comply
with the limits for a Class A computing device pursuant to
Part 15 of FCC Rules, which are designed to provide reason-
able protection against such interference when operated in a
commercial environment. Operation of this equipment in a
residential area is likely to cause interference in which case
the user at his own expense will be required to take what-
ever measures may be required to correct the interference.