Editing WoW:API SetActiveVoiceChannelBySessionID (section)

== Details ==
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:Note: This function cannot place you in the channels under the 'World' category (e.g. Trade, LookingForGroup).

:Id is assigned when the client joins a channel, not by the order of the channels in the Voice Chat window. This means generic channels such as 'Party' and 'Battleground' will not have a static id if you join any number of custom channels before joining a party or battleground. If you wish to find the id of a channel use the [[API GetNumVoiceSessions|GetNumVoiceSessions]] and [[API GetVoiceSessionInfo|GetVoiceSessionInfo]] functions as shown below.
 function GetChannelIDByName(name)
    for id=1, GetNumVoiceSessions() do
       if name == GetVoiceSessionInfo(id) then
          return id
       end
    end
 end

If you don't need to keep a reference of the id and simply wish to set a channel as active by name.

 function SetChannelIDByName(name)
    for id=1, GetNumVoiceSessions() do
       if name == GetVoiceSessionInfo(id) then
          SetActiveVoiceChannelBySessionID(id)
          break
       end
    end
 end