Different Parts of the Telephone and Their Functions

DIFFERENT PARTS OF THE TELEPHONE AND THEIR FUNCTIONS

a. The telephone handset , also called the receiver . In fact, it includes both the receiver rece iver 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  feet, ! feet, # feet and $% feet. This cord satin . Typical sometimes has a modular connector at each end, one plugging into a &ack opening on the telephone and the other plugging into a &ack opening in the wall d. The dial pad . Also called the keypad, touch-tone pad, touch-tone buttons or DTMF  pad  ("'T"  ("'T" stands for dual tone multi*fre+uency, referring to the touch*tone signals).

ost telephones use the 'T method for sending a telephone number to the telecommunications service provider. The local telephone company central office and the business telephone system (-) must have the capab ility to process these tones. The telephone is e+uipped with the dial pad having $ buttons that represent the numbers / through ! and the symbols 0 and 1. ressing 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 e2tensions 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 (li+uid crystal display). 3ot 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) 4n some systems there may not be a light, but an 56' (li+uid crystal display) indicator instead. ost people find the lights easier to see than the 56'. The purpose of the light or 56' is to indicate the status of a call in progress on one of the outside lines or e2tensions. The light may be red, green, white or amber and more than one color may be lit at the same time. The sitchhook . This refers to those two little plastic buttons that press down on a conventional telephone when you hang up the receiver. 7hen you hang up you are actually breaking an electrical circuit that connected you to the person at the other end while you were talking. 4n some telephones, the switchhook may be a single bar that depresses when you hang up. 4ther 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.  !peaker . ost multi*line and a few single*line telephones are e+uipped 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. 8ome speakers are one way only. i.  Message aiting indicator . If the system is working with a 9oice ail system, this lamp or 56' indicator lets you know that you have a message waiting in your 9oice ailbo2. There may also be a message on the display of the telephone such as 7 for "message waiting." Any of these may also indicate a message waiting at the recep tion desk or message desk if there is no 9oice ail  &.  "ase 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 . ost telephones that work with business telephone s ystems enable you to print a layout of the front (face) of the telephone including the e2tension 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.