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Elisa teki ratkaisun, jonka jälkeen lankapuhelimet jäävät lopullisesti historiaan | Uutissuomalainen | Kymen Sanomat https://share.google/tAghwJINh9KNw2JFf

Tietoliikenneyhtiö Elisa luopuu lankaliittymistään kesäkuun loppuun mennessä. Muutos koskee sekä kuluttajia että yrityksiä. Asiasta kerrotaan Elisan tiedotteessa.

Muutoksen kerrotaan johtuvan lankapuhelinverkon käyttäjämäärän vuosikymmeniä jatkuneesta rajusta laskusta. Elisa kontaktoi lankaliittymäasiakkaansa kevään aikana.

– Tällä hetkellä Elisan asiakkaiden käytössä on enää muutamia tuhansia lankaliittymiä ja määrä vähenee koko ajan. Lankaliittymiä on käytetty muun muassa lankapuhelimissa, fakseissa, vaihderatkaisuissa ja hissipuhelimissa. Uusia liittymiä ei ole myyty enää vuosiin

Suomen lankapuhelinverkko hiljenee kesällä, kun teleoperaattori Elisa luopuu lankaliittymistä kesäkuun loppuun mennessä.

Elisa kertoi tiedotteessaan tiistaina, että muutos koskee sekä kuluttajia että yrityksiäkin. Yhtiö ottaa yhteyttä lankaliittymäasiakkaisiin kevään aikana.

1800-luvulta asti palvelleen lankapuhelinverkon käyttäjämäärä on laskenut viime vuosikymmenien aikana rajusti, Elisa kertoo. Mobiiliverkkojen ja matkapuhelinten kehityksen kiihtyessä 2000-luvun alussa lankapuhelinten määrä alkoi vähentyä merkittävästi.

No more landlines? In a sign of the times, AT&T is preparing to retire its old-school copper networks across the country by the end of the decade.

AT&T mentioned the plan during Tuesday’s investors’ day as it prioritizes expanding more modern and far-faster fiber networks. “While building the network of the future, the company is actively working to exit its legacy copper network operations across the large majority of its wireline footprint by the end of 2029,” AT&T says.

In an investor presentation, an AT&T executive noted that “customers are voting with their feet and moving off of this 70-year-old copper service,” citing the higher satisfaction—and speeds— from fiber and wireless connectivity.

“In fact, only 5% of our residential customers are still using copper voice technology,” says AT&T EVP Susan Johnson. Phasing out copper-based phone networks also promises to reduce the company’s maintenance costs by about 35% while reducing its electricity use.

“The copper network is very inefficient,” she adds. “We are seeing declining reliability with storms and increased copper theft. Copper simply does not do well with water and flooding. And repairs are very labor-intensive. And unlike fiber, copper is an energy hog.”

However, AT&T cautioned that retiring the copper networks is dependent on “regulatory and contractual obligation.”

USA Today reports that the company’s landline business currently operates in 21 states, and by 2029, it expects the copper networks to be eliminated everywhere except California, where regulators have been fighting to keep the landline business alive.

In California, a key concern is that getting rid of landlines will hurt rural residents, who often struggle to access high-speed fiber or reliable cell signals. It’s why the local California Public Utilities Commission rejected AT&T’s request in June to end the landline service in the state, despite the carrier saying it was too costly to maintain.

From its earliest days, the PSTN was centered around copper, with each and every subscriber getting at least one pair of copper wires connected from their home or business. These pairs, referred to collectively and somewhat loosely as the “local loop,” were gathered together into increasingly larger bundles on their way to a central office (CO) housing the switchgear needed to connect one copper pair to another. For local calls, it could all be done within the CO or by connecting to a nearby CO over copper lines dedicated to the task; long-distance calls were accomplished by multiplexing calls together, sometimes over microwave links but often over thick coaxial cables.

Fiber optic cables and wireless technologies have played a large part in making all the copper in the local loops and beyond redundant, but the fact remains that something like 800,000 metric tons of copper is currently locked up in the PSTN. And judging by the anti-theft efforts that Home Depot and other retailers are making, not to mention the increase in copper thefts from construction sites and other soft targets, that material is incredibly valuable. Current estimates are that PSTNs are sitting on something like $7 billion worth of copper.

That sure sounds like a lot, but what does it really mean? Assuming that the goal of harvesting all that largely redundant PSTN copper is to support decarbonization, $7 billion worth of copper isn’t really that much. Take EVs for example. The typical EV on the road today has about 132 pounds (60 kg) of copper, or about 2.5 times the amount in the typical ICE vehicle. Most of that copper is locked up in motor windings

What about on the generation side? Thirteen million new EVs are going to need a lot of extra generation and transmission capacity, and with the goal of decarbonization, that probably means a lot of wind power. Wind turbines take a lot of copper; currently, bringing a megawatt of on-shore wind capacity online takes about 3 metric tons of copper. A lot of that goes into the windings in the generator, but that also takes into account the wire needed to get the power from the nacelle down to the ground, plus the wires needed to connect the turbines together and the transformers and switchgear needed to boost the voltage for transmission. So, if all of the 800,000 metric tons of copper currently locked up in the PSTN were recycled into wind turbines, they’d bring a total of 267,000 megawatts of capacity online.