AASTRA DT4x2 for MD Evolution User Guide EN - Manual (Page 8)

Welcome
MD Evolution – Cordless DT412 / DT422 / DT432 8
The telephone company may make changes in its facilities,
equipment, operations or procedures that could affect the
operation of the equipment. If this happens, the telephone
company will provide advance notice in order for you to make
necessary modifications to maintain uninterrupted service.
If trouble is experienced with this equipment, for repair or warranty
information, please contact your Aastra business partner:
http://www.aastra.com/solutions/enterprise/contacts/us.shtml.
This equipment is not intended to be repaired by the customer
(user). If the equipment is causing harm to the telephone network,
the telephone company may request that you disconnect the
equipment until the problem is resolved
Connection to party line service is subject to state tariffs. Contact
the state public utility commission, public service commission or
corporation commission for information.
If your home has specially wired alarm equipment connected to the
telephone line, ensure the installation of this equipment that it does
not disable your alarm equipment. If you have questions about
what will disable alarm equipment, consult your telephone
company or qualified installer.
This equipment is hearing aid compatible (HAC).
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Electrical Safety Advisory:
Electrical surges, typically lightning transients, are very
destructive to customer terminal equipment connected to AC
power sources. Customer is thus recommended to use a surge
arrestor for the equipment that requires AC power.