The hands-free telephone

AMONG THE UTILITIES which contribute to good standard of living, the telephone stands in prominence, playing a vital role in the activities of many people. The ease of communication provided by the telephone aids and promotes progress in every phase of human endeavor. Since its invention much work has been done to improve the telephone and to make it adaptable for new communication services. Recent advances in the electronics art, resulting in component improvement and miniaturization, provide powerful means for furthering the improvement of the telephone. One example of telephone adaptation for rendering a novel service is the development of a hands-free telephone, also known as a loudspeaking telephone.