Gourt > Business > Telecommunications > Equipment > Telephones (7)
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.
Introduction
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 subscribers
- wiring 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 and
- By voice over internet protocol (VoIP) telephones, which use broadband internet connections.
Home and Office Phones :: Communications
Saturday, 600 miles, lie between the two of us. And telephones, they can't replace me with you, face to face... #mattwertz #true
ayanameyer (ayanameyer) Sat, 19 Dec 2009 12:31:31 -0000
Saturday, 600 miles, lie between the two of us. And telephones, they can't replace me with you, face to face... #mattwertz #true
ãã¶ãããLoveï¼DISCOã£ã¦è¨ãããã«ãªã£ããthe telephonesããã
unco2009 (é森ï¼ãã) Sat, 19 Dec 2009 12:24:07 -0000
あぶねぇ。Love＆DISCOって言いそうになった。the telephonesやし。
I look Get inside to disappear into sight . Professor . two others , or did it about telephones
OTADrWho (Dr Who) Sat, 19 Dec 2009 11:18:27 -0000
I look Get inside to disappear into sight . Professor . two others , or did it about telephones
iPhone au Japon: 46% des smartphones, mais il represente combien sur l'ensemble du parc de téléphones là bas ? A peine quelques % a mon avis
rcoilliot (rcoilliot) Sat, 19 Dec 2009 10:50:55 -0000
iPhone au Japon: 46% des smartphones, mais il represente combien sur l'ensemble du parc de téléphones là bas ? A peine quelques % a mon avis
Why am I so mortally afraid of telephones?
Miandre (Claire Gourlay) Sat, 19 Dec 2009 10:01:27 -0000
Why am I so mortally afraid of telephones?
Women are like telephones they like to be held,talked..but if you push the wrong buttons you get disconnected http://www.kellysgandurra.com
cutegirl1982 (kelly s) Sat, 19 Dec 2009 07:35:05 -0000
Women are like telephones they like to be held,talked..but if you push the wrong buttons you get disconnected http://www.kellysgandurra.com
Able Comm - Phones and accessories for business and home.
Meta Description: [ Panasonic phones and phone systems for business and home. Voicemail. Headsets. Installation supplies & tools. Online ordering. Info, advice, reviews. Discounts for
do-it-yourselfers. Expert Service Since 1977. ]
Advanced American Telephones - Provides telephone products including corded and 900 MHz cordless phones, answering systems and accessories.
Meta Description: [ The phone store. Shop for a corded phone, cordless phone and a wide range of telephone accessories. ]
Clearsonics - SUpplier for a hands free, vandal resistant emergency and public information telephone/callbox for use in high-noise environments.
Meta Description: [ Clearsonics manufactures and supplies state of the art telephony products such as the WayPhone, a family of hands-free emergency and public information, roadside help phones, incorporating noise filtering technology, such as Clearsonics' Voice Clarity Enhancement(TM), for clear communication thro... ]
Freetronic Corporation - Design, manufacturing and sales of telecommunications and electronics products.
Meta Description: [ Digibio Technology is a manufacturer of phone, caller id phone, cordless phone, two line phone, telephone answering system, design phone, speaker phone ]
Pacific International China Ltd - Manufacturer and supplier of corded and cordless telephones.
Phones and Stuff - Phone systems for your business from top brand manufacturers.
Meta Description: [ Phones and Stuff : - Small Phone Systems with 2-8 ext,Med. Phone Systems with 6-30 ext,Large Phone Systems with 30+ ext,Structured Cabling, ]
Qiao Xing Universal Telephone, Inc. - Manufactures and sells telecommunication terminals and equipment, including corded and cordless telephone sets in the People's Republic of China. (Nasdaq: XING).
Teledynamics - Wholesale distributor for telephones, and fax machines.
500
Telephonesonline.com.au - Suppliers of cordless telephones, pay telephones, handsets and wireless headsets
Tone Commander - Designs, manufactures and markets ISDN, VoIP telephones, NT1 ISDN network terminations and Centrex attendant consoles.
Meta Description: [ Tone Commander, telecommunications manufacturer - ISDN and VoIP Centrex telephones, NT1 ISDN Network Terminations, ISDN and analog Centrex attendant consoles. ]
TSI - Specialist manufacturers of telephones for adverse environments.
Meta Description: [ TSI develops and manufactures telecommunications equipment designed to withstand harsh conditions; and requires international agents. ]
| How to Dial a Rotary Telephone | |
| Next Video | |
