1. Yes, the estimate data usage seen here is the mobile data. Unfortunately, comprehensive data on the “RMS data usage is not available”, but we can get the data balance and the access logs for the same on >>Services>>Connect/VPN>>Mobile Device Access Logs.
2. The routers can be configured but the possibility of IP conflict exists if they are deployed on the same network. If so, better change the IP after applying backup either manually or Via RMS server (But not in bulk)
3. Main WAN and Back up WAN to be connected to the Teltonika device and the it will provide the WAN connection to your routers, this is based on my understanding of your requirements.
Or we can use VRRP (https://wiki.teltonika-networks.com/view/RUT230_VRRP), or many other solutions based on your requirements.
4. If the WAN connection is Sim based we can limit the total Internet data. Also the data sent to the individual WLAN, LAN ports or VLAN can be limited by using HOTSPOT functionality.. But we currently don’t have any provision to limit the RMS data.
5. Yes its possible after installing the QoS package.
6. Kindly Specify the type and whether you want it on RMS or on the device itself (What will be the VPN Server?)
Please note that our device is not designed to be a VPN Server, it can act as one with a smaller quantity, based on type of VPN.
The above answer was given based on my understanding of your query, so kindly revert back if more information is needed.
Regards,
Clive Simon Victor Pinto
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