HILOOK DUBAI, IP CAMERA, DVR, NVR SECRETS

I provide the NVR-104MH-C4/P with 2 HiLook cameras and was looking to place a ColorVu DS-2CD2347G2-LU on there to exchange one of these. Will give it daily or two for the original operator to receive back to me.... how probably would be the tftp process to operate? resulting from many businesses staying open 24 several hours daily, possessing a s