ACC 7 Standard to Enterprise Edition Upgrade license. Avigilon Control Center (ACC) 7 Network Video Management Software (HD NVMS) is standalone software for recording, viewing, and managing Avigilon HD Multi-Megapixel IP cameras, analog video encoders, and 3rd party IP cameras. It is licensed by the number of cameras the system will stream and record. Please visit the Avigilon website (www.avigilon.com) for minimum system requirements and a detailed list of supported 3 rd party IP cameras.