====== adv.turnServer ======
wrtc.adv.turnServer is a string property containing URL to TURN server if other than IXNX unit's built-in one is used.

===== Value =====
String containing URL to TURN server.

===== Default value =====
wrtc.wsServer

===== Usage =====
If you for some reason want to use other TURN server than IXNX unit's built-in one you must set wrtc.adv.turnServer in [[ixnx:wrtc:js:api:wrtc:init|wrtc.init()]].