OnRelay, Top VoIP Company 2008: FierceVoIP, Fierce 15

OnRelay 

Where it's based:  London, England
When it was founded: 2000
Website: www.onrelay.com

Fierce because:  OnRelay believes the desktop handset is dead. Integrating the personal cell phone with the office IP PBX - a mobile PBX or "mobile branch exchange" (MBX) is the wave of the future. The company holds fundamental patents in fixed mobile integration, so it'll be interesting to see how its portfolio plays out against other FMC/mobile UC offerings in the future.

Fundamentally, OnRelay plays to three trends in the marketplace: 1) Millenials believe that handsets are so 20^th century; 2) People use their personal phones for home and business use; OnRelay (like other mobile UC solutions, to be fair) enables the way to separate personal calls from work calls without having to pay for a cell phone; and 3) In a tight economy, nobody wants to pay for capital expense (handsets) or operational expense (leasing handsets) if they can avoid it.

We're not so sure if the desktop handset is totally dead quite yet, but you have to appreciate OnRelay's Fierce opinion on the subject.