LTE Modem

3G / 4G service provider use different standards and frequency for their data service. You need to check which modem type is working with your provider. 

Product codemain use of modemFrequency
800-099104

Option 4G/LTE
EuropeLTE-Band: 20,8,3,7,1

UMTS WCDMA - Band: 8,3,1

GSM,Edge: 900/1800 MHz
800-099105

Option 4G/LTE NA
North AmericaLTE-Band: 17,5,4,2

UMTS WCDMA - Band: 5,4,2

GSM, Edge: Quad Band

How to Setup the Modem

https://www.airpointer.tech/setup-the-modem/