Question about nicknames and Team Talk

Hi folks ken here newly minted to applevis thanks to my friend gail a question for anyone who uses team talk voicechat client on an iphone or ipad I belong to two voicechat sites one that uses nicknames and one that doesn't so my question is when I get team talk on my brand new iphone, when I go to subscriptions can I set it up so that my nickname will appear on one site but not another or is the nickname an all or nothing change?