Ring Alarm Pro - Max number of cameras

Hello,is there a limit to the number of ONVIF cameras i can add to Ring alarm Pro ?We currently have 18 4K cameras along with 5 Ring wireless cameras around our propertyWill the pro base station support them all ? They currently run H265+ protocol, but i believe i can switch them to H.264 is needed to work with the Ring PRONeed a single app for notifications. Our NVR generates too many false notifications from trees, birds...Still plan on keeping our NVR for long term 4K video storage, if neededthanks