home phone service

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. home phone phone service. Home dinosaur party supplies tanning supplies packing supply ac dc power supplies minnie mouse party supplies barber shop supplies office furniture supply office supply wholesalers hot tub supply free diabetic supply wholesale school supply antec power supplies mailing supply power suppliers power splitters universal power supplies atx pc power supply power slot rotor testing atx power supplies online dating services phone answering services brochure printing services high speed internet services digital photo print service email marketing services software service business opportunity debt relief services managed web site hosting service merchant credit card processing service internet faxing service conferencing phone service telephone conference services cheapest broadband service nextel cellular phone service internet hosting service air ambulance services database hosting ms service sql car moving service quality web site hosting services best wireless phone service document imaging service limousine service in san diego spectrum virtual office services