i've been a dvr user for quite a while now and just recently transferred to NVR and got a 12 channel {avh 312p} from avtech . problem is im just new with nvr and so far ive tried so many generic brands of ipcams that has onvif support on them but cant seem to make it work.. i updated its firmware already and according to its site it supports onvif compliant ipcams.i have made changes to its ip manually and sometimes it even popups on my ipsearch. bt to no avail no picture. question is, is there really a way to make these 3rd party cams work on an avtech nvr? thanks. i hope someone could help.