What event assures me the session is ready?

I want to be able to invoke the streaming.task endpoint after the session is ready. I was checking for the peerConnection.iceConnectionState == "connected" in the peerConnection.oniceconnectionstatechange event, but I get the following error:

{"code":10002,"message":"session state wrong: connecting"}

What event is the correct one to look for to be sure the session is connected and ready to send tasks?

Thank you