CONSUMER BRIEFS / CELLPHONES

Verizon Wireless has started selling a device that boosts cellphone signals in a home for $250, making it easier for people to rely solely on wireless.

The Verizon Wireless Network Extender is a device known as a femtocell and needs to be connected to a broadband Internet line. It then acts like a miniature cellular tower, listening for signals from a subscriber’s cellphone. It covers up to 5,000 square feet.

Verizon, the nation’s largest carrier, is following in the footsteps of Sprint Nextel Corp., which started selling a femtocell under the Airave brand last year. The Airave costs $100, but Sprint charges an extra $5 per month for use. Basking Ridge, N.J.-based Verizon isn’t charging a monthly fee.