PHILADELPHIA — When Henry Powderly II ordered Verizon Communications Inc.'s FiOS fiber-optic service, he knew he was about to be connected to the future of telecommunications.

He also got unplugged from its past. Which meant that while Powderly was gaining features, he was losing some telecommunications options.

Verizon's installer — without warning, Powderly says — removed the copper wires that used to carry his phone calls. For most of the world, copper still links homes and businesses, as it has for a century.

Verizon's new high-bandwidth fiber lines are fully capable of carrying not only calls but also Internet data and television with room to grow. But once the copper is pulled, it's difficult to switch back to the traditional phone system or less expensive Digital Subscriber Line service. And Verizon isn't required, in most instances, to lease fiber to rival phone companies, as it is with the copper infrastructure.

What's more, anyone who owns Powderly's house in the future will face higher bills with FiOS than another home with copper. Right now, for instance, Verizon's DSL plans cost as little as $15 a month. FiOS Internet starts at $30 a month.

"I was not given an option," said Powderly, a 30-year-old Long Island, N.Y., resident.

As it hooks up homes and businesses to its fiber network, Verizon has been routinely disconnecting the copper and, many subscribers say, not telling them upfront or giving them a choice. More than 1 million customers have signed up for a FiOS service, which is offered mainly in the suburban areas of 16 states.

Verizon spokesman Eric Rabe said customers should have been notified at least three times — once by the sales representative when FiOS is ordered, by the technician before copper is cut, and through paperwork given to the customer. Some customers say that hasn't happened.

The New York phone company has made it clear its entire network is going to fiber-optics. Verizon has decided to spend $23 billion to make fiber available to 18 million homes by 2010. Network maintenance savings could top $1 billion a year, Verizon said.

"It's a huge expense to maintain those copper networks," said Scott Randolph, federal regulatory director at Verizon. "At some point in time, it would not make sense to operate two networks."

Mark Cooper, research director at the Consumer Federation of America, says there are other reasons for snipping the wires.

"They don't want to maintain it — they don't want the expense and they don't want the competition," he said.

Under the Telecommunications Act of 1996, incumbent phone companies like Verizon must lease to rivals their copper network. That's generally not the case for next-generation fiber systems. And so far, Verizon has filed more than 100 notices with the Federal Communications Commission to retire portions of copper throughout its network.

The FCC allows the retirement of copper as long as public notice is given so the phone companies can work together to ensure the smaller companies' access. But rivals say access at reasonable prices is not guaranteed and it's just a matter of time before they're cut off.

"It's a horrendous situation. ... We don't let General Motors build a highway and decide what size cars to let on the road," said Joe Plotkin, marketing director for www.Bway.net, a New York Internet provider. "The small guys have tried to fight this re-monopolization of the network infrastructure."

He and other smaller rivals contend the communications market is fast becoming a two-player game between giant phone and cable companies — diminishing consumer choice.