¿Cómo customize RMS to get the most of your IoT solution?

You cannot add a third party device to the RMS platform itself. However, via various RMS functions you can control third party devices that are connected to Teltonika devices.

Most RMS alerts are sent via email. Only a couple of alerts can be sent via SMS that are sent from the device itself.

There is no live API requests count on the website, but you can use HTTP META headers like X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset to control and view the situation

RMS data usage depends on which data you wish to send to RMS and how often, since that part is customizable. By default, if nothing is changed, the usage is approximately ~3.50 MB download, ~8.50 MB upload per device per month.

These packages are supported, but have some hardware limitations.

You can only select single registered device to check its existent alerts, creation of those though can be done to multiple registered devices

Yes, there is a possibility for that, but for more information you should contact your sales manager.

RMS has three level hierarchy (Tier1 -> Tier2 -> Tier3)

This can be done by assigning a specific role for the user. To create a new role go to Users -> Roles -> Create new role. There you will be able to give only RMS VPN permissions. Also, check webinar video from 34 minute, there was shown how this role can be created and assigned.