Already, thank you very much for your time.
Following your suggestion, I added, as it is below, but still did not work.
function connect() {
easyrtc.setSocketUrl(":8080");
easyrtc.setUsername(usuario); //setting username
easyrtc.setRoomApiField('SectorZero', 'genero_user', genero);
easyrtc.setRoomApiField('SectorZero', 'avatar_user', avatar);
easyrtc.setPeerListener(addToConversation);
easyrtc.setRoomOccupantListener(convertListToButtons);
easyrtc.setRoomEntryListener(roomEntryListener);
easyrtc.easyApp("easyrtc.instantMessagin", "selfVideo", ["callerVideo0", "callerVideo1", "callerVideo2"], loginSuccess, loginFailure);
}
easyrtc.setOnCall( function(easyrtcid, slot) {