It seems like office communicator has a 10 person max on it. Do you know that is? Is there anyway to get more names in a single shared chat room?
Office communicator is something I use at work. I have dug through every setting I can find and I do not see any options anywhere to modify this limit. Maybe it is hardset and you cannot change it?
I asked a question once about extra emoticons in office communicator and there was no way to expand them as the built in ones were the only options. http://superuser.com/questions/10343/how-do-you-use-more-emoticons-in-office-communicator