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Supported modems:

VT790 / External LTE modem

VT770 / Internal LTE modem

VT760 / Internal LTE modem


●  Built-in       □  None       ●  Extension       ○  Not extendable

Modem (extensions)VT825iVT855iVT960VT825VT805VT335VT325VT604VT608

4G LTE modem: VT790, VT760 are ordered separately. 


VT790VT790VT760VT760VT760Not extendableVT760VT760

Modem modes:

  • Gateway: Internet access using Vutlan unit for other devices on the network
  • Access: Internet access over LTE
  • SMS: sending SMS notifications and receiving SMS commands

Gateway / Access / SMSGateway / Access / SMSAccess / SMSAccess / SMSAccess / SMSNot extendableAccess / SMSAccess / SMS


The modems work in Primary mode. If the primary mode is unavailable, the modem switched to Secondary the mode of operation.

Modems4G support3G supportUsed for:
VT740PrimarySecondaryVT825i v2, VT825ii v2, VT855i v2, VT855ii v2, VT960i v3, VT960ii v3, 
VT750PrimarySecondaryLora Gateway
VT760PrimarySecondaryVT335 S, VT604, VT608, VT805, VT825, VT825 DC,
VT770PrimarySecondaryVT336
VT790PrimarySecondary VT960i v2, VT960ii v2, VT825i v1, VT825ii v1, VT855i v1, VT855ii v1, 


Read the following articles for installation instructions:

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