If you want to test it out quickly and your Peplink device is still within warranty you can setup a VPN with SpeedFusion Connect Protect (more information here:SF Connect Protect)
Setup a VPN to the closest breakout point and you can see if the carrier has any limitations. (make sure the vpn is Encrypted)
Don’t forget to route the network over your VPN tunnel. You can select all network over VPN in the advance → SpeedFusion VPN tab on your WebAdmin.
Hope this helps. Let me know if you have any questions 