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Captel, Ringer pitch & volume, Using – Ultratec CAPTEL 200 User Manual

Page 15: With assistive devices

Captel, Ringer pitch & volume, Using | With assistive devices | Ultratec CAPTEL 200 User Manual | Page 15 / 54 Captel, Ringer pitch & volume, Using | With assistive devices | Ultratec CAPTEL 200 User Manual | Page 15 / 54
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