Room 220: We're getting 'mystery' incoming calls, identified as *1001@ - our fixed IP address. We're pretty sure they're originating within our LAN, and seem to come at 2.5 minute intervals. We're guessing its some kind of back-up polling, or similar. Any ideas what might be the source?
We're a small non-profit offering courses to retired folks; we use videoconferencing between our locations to allow more folks to attend our sessions at campuses 10 - 15 miles apart.
*Some calls are ID-ed as 1002, 1003, 1005
Thanks for your help,