Specifications, Installation guide & user manual teletalker, Model tel 040 – Williams Sound TEL 040 User Manual

Page 16: Teletalker, Amplified telephone, model tel 040

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Specifications, Installation guide & user manual teletalker, Model tel 040 | Teletalker, Amplified telephone, model tel 040 | Williams Sound TEL 040 User Manual | Page 16 / 16