Ipevo has launched beta software that allows its Skype phones to be used with Macs.

It's the company's first attempt to add such support to its Free-1 Skype phones. The software is available for download here.

Skype software for Mac OS X is available here.

Free-1 phones plug into a desktop or laptop through a USB port, and by pressing a button on the phone Skype is launched, ready for voice calls over the Internet to another computer. For SkypeOut, users need only to press a large "+" key, and then they can make calls from their computer to telephones.

The company, which launched its Free-1 phones in September, has already sold over 20,000 handsets, said Robert Lo, chief operating officer at Ipevo.