I am developing an app using ringcentral-web-phone WebRTC SDK and I want to set my Caller ID to be Blocked/No Number.
Per http://ringcentral-faq.readthedocs.io/en/latest/voice_webrtc/ I can specify a value for 'fromNumber' and that will set my Caller ID. I am able to specify my company number or my direct number as my Caller ID successfully.
How can I set my Caller ID as Blocked/No Number?