I don't think anyone has used Arranged Team Chat.
It makes noises when people join and leave the room. I spent months trying to figure out where these 'phantom' sounds were coming from.
Make an option to not automatically join Arranged Team Chat on log in please. It is really irritating.
© 2015 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.