Deafen spamming

When you spam the deafen and undeafen button, then leave the call, you don't actually leave the call. Your name is still there, but you can't hear the people in that call. Also, you can't mute, deafen, unmute, or undeafen when you do that. You can join other calls, but then it will say "Looks like you're in another voice channel. Are you sure you want to switch to (insert voice channel)"