Add ONVIF support, please. I sent back my 2 two cameras due to this missing feature

By the way, the battery excuse for not providing this feature doesn't stick especially due to the fact that it works with solar panel. Should I send my cams back and add a bad review about this lack...

I purchase 2 of C420 cams with intention to use them with NAS, and I was disappointed. RTSP or ONVIF support will be a real plus for these cameras.