Panasonic KX-DT521 Quick Reference Manual page 4

Important Information
R This device is equipped with pulse dialing while the telecom standard is DTMF
tone dialing. There is no guarantee that the Telecom Lines will always continue
to support pulse dialing.
PTC General Warning
R The grant of a Telepermit for any item of terminal equipment indicates only that
Telecom has accepted that the item complies with minimum conditions for
connection to its network. It indicates no endorsement of the product by
Telecom, nor does it provide any sort of warranty. Above all, it provides no
assurance that any item will work correctly in all respects with another item of
Telepermitted equipment of a different make or model, nor does it imply that any
product is compatible with all of Telecom's network services.
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