If you have an Android phone connected to your network that the cameras are on use an app called Onvifer this will find cams put in Username/password and it should give you all the info u need. if u need help i'll do my best Excellent, the link that came up worked like a charm, i posted it in ...

Gentlemen,
Here is the link:
http://[NVR_IP_address]:[TCP_port]/onvifsnapshot/media_service/snapshot?channel=1&subtype=0