API GetNumVoiceSessions

__NOTOC__
Returns the number of voice sessions the client is currently in. Ignores voice channels under the 'World' category. 
 num = GetNumVoiceSessions()
==Returns==
:;num: - Number of voice sessions the client is currently in.
==Details==
: This will only count sessions in which the user can speak. These include custom channels and Party, Battleground and Raid channels.