advise on selecting the right system devices for our company needs.

Our company is looking for a bigger surveillance with 16 to 20 cams with different needs.

As I don't see a simple option to collect the right components togehter I'm wondering, if someone could help advising.

Questions

1.) When ordering a 8 or 16 Channel NVR

(a)
besides connecting 8 (e.g. PoE) camera devices - so all physical ports would be used, is it always still possible to...
- connect additional (Anneke) WiFi Cameras to the NVR?
- or which modes allow the need to add more IP-Camera streams than physical ports available?

(b)
What are the max recording Bit-rates (recording speed)?
- can all camera's full streams be recored in parallel or only if a view of them detect motion at the same time?
- what if we would have the need to 24/7 record the full bit rates of all connected cameras in full parallel --> is there any Anneke NVR system that supports that?
- ... or what are the limits of the Anneke NVR systems OR which parameter from the datasheets tells that?
- ... and to calculate max parallel recording speed / rate of the NVR system --> just add the max Bit-rate of each individul IP-camera?

(c)
Can 2 or more Anneke NVRs work in parelle in any way that they are connected or does that not make any sense?

2.) For ordering different camera models

(a)
Are all Anneke IP-cameras compatible to be connected to any of the Anneke NVRs...?
Or which one are compatible to which NVR?

(b)
Are all Anneke IP-cameras fully compatible to each other or are there any modes that should be avoided putting together in the same system?

(c)
Are there models that support 270 degrees viewing angle?
And can those be set to always watch for one entrance zone ... but once motion detected in that zone to smart follow person or vehicle inside supported viewing angle?

Ps. We might be using about 7 outdoor cameras (1-2 advanced models) and at least 9 indoor cameras (2-3 advanced models). Both indoor and outdoor models might be PoE powered and some might need WiFi (while I hope mostly LAN / PoE can be used).

3.) Extented support packages available?

- or could they be individually agreed on?