Telephone : What is it?
| Telephones are home and office devices designed for making simultaneous two-way voice communication. They are made up of a receiver with a microphone at the bottom for talking and a speaker at the top for listening, and a base unit with a flash, a keypad, and buttons such as redial and hold.
The telephone was invented by Alexander Graham Bell in 1876. The first telephones used to transmit and receive sound waves through an electromagnetic coil and a harmonic telegraph. Over time, the line and connection systems gradually improved according to the available technology. Today, telephones use fiber optics to transmit data not just for communication but for Internet, phone banking, and customer service applications as well. |
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Kinds of Telephones include the following: |
Single-line telephones
Single-line telephones are the basic types of telephones. They are commonly used at homes and small offices and are available in different colors and designs.They do not have additional extension and transfer capabilities. Most models use analog lines that allow for easy and direct hooking up to wall jacks. Depending on the phone company and the service applied for, they can be added with useful features such as three-way calling and call waiting options. Some models can even be integrated with answering machines if the phone company’s voice mail service is utilized.
Small business multiple-line telephones
Small business multiple-line telephones are designed to handle multiple calls efficiently. They are ideal for small businesses with moderate phone traffic. They can have more than two extensions, depending on the number of people who need to receive important calls. They allow digital line hookups for better call management. Most models are designed with voice mail systems that usually have two to 10 ports to prevent missed calls.
Large business multiple-line telephones
Large business multiple-line telephones are designed to handle a large number of calls, usually more than 50. They are ideal for large businesses and corporate offices. They can hold more than 100 outside lines and extensions. They require the use of one or more T1 lines to effectively handle all the calls. Most models are designed with voice mail systems that usually have multiple ports to prevent missed calls. |
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Hands-free calling: If you want the convenience of making hands-free calls, choose a telephone with a built-in speaker in the base unit that allows you to make and receive calls without lifting the receiver.
Caller ID: Choose a telephone with a built-in caller ID that allows you to identify the caller before you pick up the receiver. The caller ID feature provides you with the caller's name and number, and the call date and time. |
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