Self Answering Telephone
The requirement was to enable a lady who had lost the use of her arms to continue to use her own speaker phone to receive telephone calls from relatives.
The problem was solved by wiring out the contacts of the ‘Handsfree’ pushbutton to a jack socket on the side of the phone.
A set of electronics was then produced (housed in a pedestal) that listened for the phone ringing and simulated the press of the ‘Handsfree’ button to receive the call and listened for the tone when the caller hung up to simulate a further button push to end the call.
Bedfordshire North Panel BN27/13
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