At this moment TokBox is creating a new community-based Cordova plugin for WebRTC support. The plugin can be found on the cordova-plugin-opentokjs GitHub page. Please note that it is still in development at this moment. But everyone is working towards a 1.0.0 release.
We have added also an Ionic example based on the Ionic tabs starter project. The example can be found on our cordova-plugin-opentokjs-example GitHub page.