Oops, they’ve done it again. Another tech leak by the FCC (News - Alert).

This time the leak is about an upcoming extender for home VoIP provider, Ooma.

The Ooma Linx, uncovered among FCC filings by tech blogger Dave Zatz, seems to both extend the range and increase the number and type of devices that can be used on the Ooma Telo base station.

The Ooma Telo is a VoIP device that allows a user to make free calls in the U.S. and cheap international calls by connecting the Telo base station to the internet and analog phones to the base station. One feature that sets the Telo apart from VoIP offerings such as the original magicJack is that users only need to pay for the base station and then all calls in the U.S. are free for the life of the device.

The Telo also lets users port their existing phone number to the network for a one-time fee, add an inexpensive landline for 911 service support, and works with a special handset offered by the company.

Ooma also announced in January that it upgraded the Telo to include HD Voice, boosting call quality and giving callers “crystal clear conversations over congested networks,” according to news reports at the time.

The Telo refresh also includes direct support for Google (News - Alert) Voice, “human-aided” voicemail transcription and Bluetooth support to pipe cell phones through the Telo network.

The proposed Ooma Linx looks to be a device extends the Telo beyond the room where the base station is located. It connects wirelessly with the Telo base station via the Digital Enhanced Cordless Telecommunication (DECT (News - Alert)) standard and hosts an additional phone, phone base station or fax machine. Just plug the Linx into the wall and attach an analog device to the unit.

“The goal is to let Ye Olde Wired Phone (News - Alert) in the basement join the 21st century without having to move the Telo or otherwise jump through hoops,” noted Jon Fingas at Engadget.

“We can't glean from the clearance just when the Linx will be ready to shake the dust from our antiquated phones,” Fingas added, but “the wait isn't going to be too long before that landline handset enters the modern world.”

Zatz uncovered the Linx Quick Start Guide and a couple images from the FCC filing.With the news coming from the filing, there’s no word yet about the price or release date for the device.