How to get/set a=ice-options attributes with ORTC

Hi, 

For SDP line a=ice-options, how to get the local/set the remote on ORTC? 
getLocalParameters only has:
dictionary RTCIceParameters {
    DOMString usernameFragment;
    DOMString password;
};

Thanks, 

-Jiannan 

Received on Wednesday, 22 October 2014 19:51:47 UTC