Telephone
hideThe telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.
The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.
For more information about Telephone, read the full article at
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News tagged with phone
Vonage to settle investigation involving 32 states
29 minutes ago |
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(AP) -- Internet phone service provider Vonage Holdings Corp. has agreed to pay $3 million to 32 states to settle an investigation into some of its business practices.
Samsung Launches Open Mobile Platform: Samsung Bada
Nov 12, 2009 |
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Samsung Electronics today announced it will launch its own open mobile platform, Samsung Bada [bada] in December. This new addition to Samsung’s mobile ecosystem enables developers to create applications for ...
Mobile phone sales rise in 3rd quarter: study
Nov 12, 2009 |
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Global sales of mobile phones reversed a slide that began late last year and turned positive in third quarter 2009, a trend expected to accelerate thanks to smartphones, a study disclosed Thursday.
Google Latitude adds location history, alerts you when friends are nearby
Nov 11, 2009 |
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Google Latitude to find your nearby friends, you're in luck: Google updated Latitude with location history and alerts for when your friends are nearby. If you don't love your every step tracked -- well, it's ...
Nokia recalls millions of dangerous chargers
Electronics / Consumer & Gadgets
Nov 09, 2009 |
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Nokia, the world's biggest mobile phone maker, issued on Monday a global recall for 14 million faulty chargers made by a subcontractor this year.
Dutch researchers develop technology for pain monitoring
Nov 05, 2009 |
4 / 5 (1) |
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Ten of thousands of patients suffer chronic pain as a result of operations, and this continues even after the wounds caused by the operation have healed. Researchers from the MIRA research institute - the University of Twente’s ...
GPS phone offerings: Price is Nuvifone G60's downfall; Navigon is on the money
Electronics / Consumer & Gadgets
Nov 05, 2009 |
4 / 5 (1) |
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GPS navigation is morphing from a cool luxury to just one more thing you expect out of a decent smart phone. But different phones approach the issue in different ways.
Study shows cell phone users miss the obvious, like a unicycling clown
Medicine & Health / Psychology & Psychiatry
Nov 04, 2009 |
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How blind to their surroundings can people be when they're talking on their cell phones?
Review: Motorola's Droid is a serious smart phone
Electronics / Consumer & Gadgets
Nov 04, 2009 |
4.7 / 5 (6) |
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(AP) -- Since its debut in 2007, millions of people have gravitated toward Apple's iPhone, wooed by its sleek hardware, simple user interface and abundance of applications.
Study: Internet use leads to more diverse networks
Other Sciences / Social Sciences
Nov 04, 2009 |
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(AP) -- A new study confirms what your 130 Facebook friends and scores of Twitter followers may have already told you: The Internet and mobile phones are not linked to social isolation.
Mobile phone inventor wants devices to go back to basics
Electronics / Consumer & Gadgets
Nov 04, 2009 |
3 / 5 (3) |
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The inventor of the mobile phone said Wednesday the devices have become too complex, with a range of features from cameras to music, since he made the first-ever wireless call over three decades ago.
Spacesuits with artificial intelligence may look for life on Mars
Space & Earth / Space Exploration
Nov 04, 2009 |
5 / 5 (7) |
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(PhysOrg.com) -- Astronauts may in future be wearing spacesuits equipped with artificial intelligence (AI) and digital eyes, turning them into what the researchers call cyborg astrobiologists.
T-Mobile says phone service outage resolved (Update)
Nov 04, 2009 |
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(AP) -- Wireless provider T-Mobile USA Inc. says it has cleared up service problems that were interfering with calls and text messaging for about 5 percent of its customers.
China Unicom eyes one million China 3G subscribers per month
Nov 03, 2009 |
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Mobile operator China Unicom said Tuesday it aimed to boost the number of its 3G mobile phone subscribers in China by one million per month, following its launch of Apple's iPhone there.
iPhone comes to China without key feature
Electronics / Consumer & Gadgets
Oct 30, 2009 |
3.8 / 5 (4) |
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(AP) -- Apple's iPhone is making its long-awaited formal debut in the world's most populous mobile phone market, without a key feature and at higher prices than widely available black market models.
