At low cost, they can also call landlines or mobiles virtually anywhere in the world.
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Syrian residents confirmed the blackout, but said mobile phones and landlines were working normally.
Currently, Slim controls 70% of the mobile phone market in Mexico, and 80% of landlines.
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All of which have massive wireless divisions and can more easily absorb shrinking revenue from landlines.
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People could use the same e-mail and network identity everywhere, on landlines or over the air.
Slim's Telmex controls 80 percent of Mexican landlines and 70 percent of the mobile-phone market.
CNBC's survey polled 836 Americans via both landlines and cellphones over three days in March.
Not surprisingly, alongside increased spending on cell phones has come decreased spending on landlines.
At a price where it is cheaper, vastly cheaper, to connect a nation using mobiles rather than landlines.
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In recent years it has lost 40% of its landlines and revenues have dropped by more than 30%.
Telecoms lose money on the copper-wire landlines maintained to comply with universal-service requirements.
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Telecoms, he pointed out, are based on three segments: landlines, wireless and businesses.
The smaller work force partly reflects the shift toward cellphones and away from landlines, which require considerably more maintenance.
Companies usually fail by sticking with obsolete technologies (like landlines and photographic film) instead of moving into the future.
You can easily add credit which then allows you to call landlines and mobiles for a fraction of the cost.
Many of his supporters don't have landlines, or have never been registered to vote before, so they are not called.
Standard geographic charges from landlines and mobiles will apply and calls may be included in your telecom provider's call package.
But even the landlines need less human attention because Verizon is rapidly replacing old-fashioned copper lines with lower-maintenance, fiber-optic cables.
Price rises on 5 January will include standard line rental, call plans, standard broadband and calls to other landlines, it said.
Picochip is the market leader in femtocells, which redirect mobile-phone signals through landlines, boosting coverage in remote areas and prolonging battery life.
Landlines are the platform for many public services, such as emergency response.
Calls to 101 cost 15p from both mobile phones and landlines, regardless of how long the call is or when it is made.
Residents of a Surrey village are still without broadband and landlines more than a week after underground copper cables were stolen by thieves.
Look for cutbacks in landlines and slower growth in wireless, but the next recession impacts should be far milder than the last business cycle.
Gmail calls to landlines in China, France, Spain, Mexico, the U.K. and more than two dozen other countries will cost two cents a minute.
And taxes on landlines are the basis of the complex system of subsidies to ensure universal service, meaning an affordable phone line for all.
In these difficult times ever more Americans are heeding this advice and dropping their telephone landlines in favour of mobile phones (see article).
Last Thursday, CenturyTel and Qwest announced plans for a merger that would make one of the largest operators of landlines in the country.
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Now, it's giving landlines the ability to send and receive texts without the need for a new number, which the firm says is a first.
Skype is well known for its low-cost, long-distance calling rates, and makes a good chunk of its revenue from international calls to landlines and cellphones.
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