Telephone: Voice Technology1. Introduction: The invention of the telephone is considered the most wonderful innovation in the world. We often consider that our society is saturated with technologies of all kinds. The telephone is classified as an information and communication technology. Today it is considered one of the main sources of communication. Its form and functions precisely define the challenges of interaction between two distinct parties: long distances are conquered instantly and any phone in the world can connect to different locations by means of networks. In this paper, I would like to focus on the notable, enduring and essential contribution of the telephone and its impact on modern social, political, economic and engineering practices.2. What is the telephone?The telephone, often called a telephone, is a telecommunications device designed to simultaneously transmit and receive the human voice (Colins 1977). This system encourages people separated by a great distance to communicate without losing contact with their company and a certain social responsibility. The phone consists of a microphone through which the user can speak and an earpiece that produces the voice of the other partner. The phone consists of important features that help alert the owner when a call comes. Its structure is well organized with integrated keyboards to enter the phone number.2.1. Invention of the Telephone: The telephone was invented by Alexander Graham Bell. It was one of the greatest achievements in history. According to Michael (1991), March 10, 1876 is a very important date in the history of telephony; for it was on this day that the first working telephone was introduced by Alexander Graham Bell and his assistant, Thomas A. Wilson. The ...... middle of paper ......ion between people working in the same field, for example, the field of engineering plays a vital role and could be considered as the main key to success in the field of engineering to carry out the design project.5. Conclusion So far, the invention of the telephone has provided a means of development. It is a key contributor to engineering and technological advancement. The telephone played a vital role in the development of engineering, medicine and social welfare. Today, people who are very far away thanks to network coverage can still be in touch thanks to this device. However, it was also reported that the phone was also being used by young people for illegal purposes such as bullying and distribution of child pornography. It has been reported that prolonged contact with cell phones could cause brain tumors, cancers, etc. due to the emission of radiation from it..