M26 works fin in 2G band but in 3G?

Hi!I live in Chile and the 2G band no longer an option here and somehow all my… alarms, gates opener etc use the Quectel M26, started to have cero GSM signal therefore the question does it work in 3G band? Thanks!

Hi
Unfortunately, the M26 only works on GSM networks. For example, the frequency band 800 900 1800 1900