The purpose of the telephone is to audibly communicate with other people who are far away instantly and efficiently. Before the telephone, long distance communication was done with telegraph machines which were less efficient and took longer to get messages across since only dots and dashes could be communicated.Continue Reading
Telephones are particularly useful for quick communication in emergencies. The key to medical survival in many situations is for the injured person to get medical attention quickly. Before the telephone, it was more difficult for people to get help quickly.
Telephones allow for quick communication during natural disasters as well. That way it is possible for the government to warn people of impending disaster before they arrive. Since electrical signals travel at the speed of light, the government can inform people of coming hurricanes, earthquakes and other disasters that travel considerably slower. When communication was done only through people riding on horses, it was impossible to outrun natural disasters.
Telephones also have the purpose of simple communication in everyday situations such as calling to order items such as pizza or flowers. People may communicate in a normal way to talk about their lives just as they would if they were in the same room.Learn more about Mobile
The invention of the telephone allowed people around the world to instantly share new ideas and information on a whim. This increased efficiency across the board, as previous communication depended on the telegraph and hand delivered mail.Full Answer >
To call a French telephone number from the United States, dial the U.S. exit code (011) followed by the country code for France (33) and the nine-digit telephone number you are trying to reach. Your call must be made from a line with international direct dialing enabled.Full Answer >
The International Telecommunication Union sets a one- to three-digit code for each country, and those codes serve as part of the telephone number for long-distance calls. Examples include 48 for Poland, 677 for the Solomon Islands and 976 for Mongolia.Full Answer >
A bug or listening device can be detected by recognizing strange noises on the telephone, changes in the volume during conversation and a person not connected with a situation who knows more than they should. These are the most common ways that eavesdroppers are able to listen into business dealings and get confidential information that was not intended for them.Full Answer >