When it says ". . . an on-line satellite tracking system . . ." it is referring to Spotwalla, not the underlying GPS device or app.
I'm not familiar with R-Link or Rever, but as I understand it, the R-Link device is used with Rever. Rever stores the track log in Rever cloud storage (and does Rever store them indefintitely or is there a time limit?). I don't think Rever talks with Spotwalla, but does it talk with any Spotwalla-like service (i.e., an independent on-line source) ?
Can you set the R-Link/Rever/independent on-line service to conform to the Spotwalla protocol requirements (device settings, trip settings, etc.)?
Thanks.