As of right now, no there is none for the Video Chat app. I also don't remember anyone really asking for one. You are probably the first. Most people just ask for the app to support other video chat services like Skype.
---Spends time in #blackberrydev on freenode (IRC)---- Three simple rules: 1. Please use the search bar before making new posts. 2. "Like" posts that you find helpful. 3. If a solution has been found for your post, mark it as solved. --I code too much. Well, too bad.