Something told me it was an iOS limitation, to which my surprise level is exactly zero. The iPhone is my work phone where I don't really want to go down the road of installing apps for personal use on it, though I do keep the UI3 entry bookmarked in my browser. Personal and work phone are different providers, so having a means of tapping into live video quickly in an emergency is helpful in the event I'm in an area where my personal phone has no signal but the other does. I can live with no audio on that one. It just stood to burn my curiosity without knowing exactly why it wasn't working. Your insight helped though -- appreciate it.