The last time we heard from Invoxia, the company was showing off a desktop VoIP phone with iPad and iPhone docks, allowing you to use the familiar iOS interface to manipulate all the phone's controls -- mute, volume, speakerphone, et cetera. As Mobile World Congress kicks off, the company's back with a product that looks very similar, but does quite the opposite. Designed for business use, the AudiOffice isn't a standalone VoIP phone but rather, a speaker dock for your iDevices. Here, your sweet telephony comes courtesy of your iPhone, while Invoxia's hardware is mainly there to enhance the call quality, with the help of four wide-bandwidth speakers and two digital microphones. And though those docks were built with the iPad and iPhone in mind, you could, if you were so inclined, connect another device using the dock's USB socket or Bluetooth 2.1 radio. In addition to FaceTime, too, you can place calls through more OS-agnostic apps, such as Skype. The AudiOffice will sell for $299 -- quite pricey for what's essentially an iDevice dock -- but that's still far more affordable than the $599 the NVX 610 is fetching. We'll be back with hands-on photos soon enough, but in the meantime we've got pictures of the official sort below.