Evening Republican, Volume 21, Number 161, Rensselaer, Jasper County, 18 July 1918 — How to Use the Telephone. [ARTICLE]
How to Use the Telephone.
Telephone experts declare that if a person speaking over a phone holds the transmitter four inches from his mouth it is equivalent to adding about 220 miles* to the line over which he is conversing. Carelessness in using a telephone is one of the common causes for indistinct transmission. The best results are obtained by allowing about half an inch to interyene between the mouth and the transmitter, according to Popular Mechanics Magazine.
