phone service local

An old rotary telephoneA basic modern telephoneThis article is about telephone technology. For the game of telephone, see Telephone (game). For the band, see Téléphone.

The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance. Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost any other.

Touch-tone telephone

Introduction

A touch-tone telephone keypad

An elementary telephone system would consist of three elements:

the equipment located at each subscriber which converts sound to electrical signals and back, and which allows the subscriber to answer or initiate a call,a central switching facility which interconnects all the subscriberswiring or other means to connect the subscriber to the central switching facility.

There are three principal ways a subscriber may be connected to the telephone network:

Historically, and still very commonly, by dedicated physical wire connections run in overhead or underground cables;By radio, as in a cordless, cellular, satellite or radiotelephone andBy voice over internet protocol (VoIP) telephones, which use broadband internet connections. Learn about AT&T Local Phone Service and stay connected. Home craft supplies ladybug party supplies electric fence supplies toshiba laptop power supply executive office supplies art supplies canvas bindery supplies service dog supplies material handling supplies electric power generators wind power generators high power laser diode atx switching power supply texas durable power of attorney meanwell power supplies electric gas generator powered solar powered roof vent merchant services online fax service transcription services business internet service provider spam filtering service phone sex services free gay dating service answering service chicago ecommerce hosting services professional answering service web services design dating services chicago air charter service cingular phone service best web site hosting services free internet fax services telephone conference services online credit card service corporate gift services dating services for professionals customer service training seminar colocation hosting service customer service seminar local phone service illinois online tax filing services corporate services