From Homeland Defense Journal, Nov. 2006, page 8:

The Frontline Communicator is a completely wireless end-to-end solution. The system consists of a headset camera and a miniaturized transmitter.
The video images captured by the camera, and the voice of its wearer,
are transmitted in real-time to another party’s computer. This
user-friendly software interface ensures a dynamic
and interactive communication. Its highly effective algorithms make
audio and video communication possible even when bandwidth is limited.

The Frontline Communicator is compatible with numerous modes of wireless communication including Wi-fi (802.11b), high-speed cellular (30 kbps) and Bluetooth.