What is UNICOM?
(video coming VERY soon!)
UNICOM is a frequency (122,800) where pilots can share their intentions while flying through uncontrolled airspace. ATC availability on VATSIM is not guaranteed, therefore UNICOM is used in case ATC is not online, so pilots can know from each other where they are and what their intentions are. UNICOM on VATSIM is using text for its communication, not voice. More in the video above!