Cellular Modem behaviour with Multi Network SIMs (MAX/MBX)

Hi All,

We have multi network roaming sims and these for the most work without issue with various pepwave models, however I want to better understand the modems expected behaviours and actions. Is network reselection only triggered when the modem is reset/initally starts? Does or could a signal threshold value trigger a new network scan? I know you can manually select a new network from the list of networks available in the scan but are there any further automatic mechanisms that occur? i.e., every 30 mins in the background the pepwave reassess the available networks.