You mention having video, I was under the impression that the PowerG card eliminated the Alarm.com image/video/viewing
I have a Skybell doorbell camera at the front door and a Alarm.com camera ADC-V722W at my rear patio door. Both cameras can stream video to the Qolsys panel.
The Skybell camera uses motion detection to alert me if anyone is at the front door. A notification is sent to my phone and I can view and communicate with anyone at the front door.
The rear patio door outdoor camera as indicated before has streaming capability but it only records video when an event occurs such as the burglar alarm is tripped. The camera can be set up to record video on motion detection but I disabled that feature since the camera motion detector was tripped by falling leaves, animals etc. Thus, I had too many false recordings.
I'm not sure what Power G has to do with video. My understanding was the Power G was only a wireless sensor feature. That is, 900 MHZ sensors that use 128 bit AES encryption. These Power G sensors also have a high transmission range of 1.24 miles line of sight.
Which monitoring/dealer did you go with?
I chose Alarm.com used in conjunction with a local security company.