Introduction
Your Duet 450 Clock Telephone is designed for ease of use and made to the high standards set by BT
We thank you for making the right choice and expect that your machine will give you many years of quality service.
Please read the instructions carefully before use, and keep this User Guide for future reference.
For your records
Date of purchase:
Place of purchase:
Serial number:
(on base of answering machine)
Purchase price:
(for warranty purposes, proof of purchase is required, so please keep your receipt)
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