Different Parts Of The Telephone And Their Functions 2o3pa

DIFFERENT PARTS OF THE TELEPHONE AND THEIR FUNCTIONS

a. The telephone handset, also called the receiver. In fact, it includes both the receiver enabling you to hear and the transmitter through which you speak. b. The handset cord. Also known as the curly cord. This often gets very twisted which can break or damage the wires inside causing interference (static or "noise" on the line). c. The mounting cord. A straight cord (cable), usually gray or a translucent gray called silver satin. Typical lengths are 6 feet, 9 feet, 13 feet and 25 feet. This cord sometimes has a modular connector at each end, one plugging into a jack opening on the telephone and the other plugging into a jack opening in the wall d. The dial pad. Also called the keypad, touch-tone pad, touch-tone buttons or DTMF pad ("DTMF" stands for dual tone multi-frequency, referring to the touch-tone signals). Most telephones use the DTMF method for sending a telephone number to the telecommunications service provider. The local telephone company central office and the business telephone system (PBX) must have the capability to process these tones. The telephone is equipped with the dial pad having 12 buttons that represent the numbers 0 through 9 and the symbols * and #. Pressing one of the buttons causes an electronic circuit to generate two tones.

e. The feature buttons, also known as feature keys or function keys. These can serve a variety of functions. They enable different outside lines and extensions to be answered. They may activate telephone system functions such as call transfer, call conferencing, call forwarding, etc. f. The display, also known as the LCD (liquid crystal display). Not all telephones have displays, although most newer ones do. All business telephone system manufacturers provide them, but the display telephones may cost more g. Lights (also called lamps or LEDs - light emitting diodes) On some systems there may not be a light, but an LCD (liquid crystal display) indicator instead. Most people find the lights easier to see than the LCD. The purpose of the light or LCD is to indicate the status of a call in progress on one of the outside lines or extensions. The light may be red, green, white or amber and more than one color may be lit at the same time. The switchhook. This refers to those two little plastic buttons that press down on a conventional telephone when you hang up the receiver. When you hang up you are actually breaking an electrical circuit that connected you to the person at the other end while you were talking. On some telephones, the switchhook may be a single bar that depresses when you hang up. Other telephones have a magnetic switchhook inside the telephone, directly under the receiver when it is hung up, that cannot be seen from the outside. h. Speaker. Most multi-line and a few single-line telephones are equipped with some type of speaker. A speakerphone enables the person using the telephone to have hands-free conversation with another person at a distant location without lifting the handset. Some speakers are one way only. i. Message waiting indicator. If the system is working with a Voice Mail system, this lamp or LCD indicator lets you know that you have a message waiting in your Voice Mailbox. There may also be a message on the display of the telephone such as MW for "message waiting." Any of these may also indicate a message waiting at the reception desk or message desk if there is no Voice Mail j. Base of the telephone; telephone housing. This is generally a molded plastic casing designed to house a specific type of telephone. k. Faceplate or Face Layout. Most telephones that work with business telephone systems enable you to print a layout of the front (face) of the telephone including the extension numbers and system features that correspond to each button. This printed layout may slip

into place over the buttons and under a clear plastic cover that is often called the faceplate.