ip camera need mo para wala na dvr. also, the newer versions have a cloud feature. meaning no need to access the camera via IP address, the DVR (or the in the case of IP cameras, the camera itself) will upload directly to the cloud. kaso lang sa ganitong setup, there will be a delay compared to the regular direct IP access
pag cctv dadaan talaga sa DVR yan since all features will be handled by the DVR (i.e. cloud, ip access, recording, network access, etc)