AboutSpencer Holcombe Expertise Hi, thanks for checking me out, I have several years in the telecom industry, working for Pacific Telephone,American Bell,AT&T,AT&T Communications,AT&T Information Systems, and Pacific Bell-SBC. I can answer most questions regarding Telephones,wiring,jacks,PBX, Local and Long Distance,Billing,Custom calling services, Customer Service,and Fraud. I can`t answer Cellular questions.
Question I know that in a telephone the duplex coil is used to stop you from hearing your own voice in your handset speaker.
How does this device work?
Thanks (:¬)
Answer Simon, please go to the web site: howstuffworks.com and enter the term: duplex coil-telephone. They can explain it with drawings, and give you a better idea of how it works. You are almost right, but MOST telephones let you hear your own voice by DESIGN for conversation. Spencer
