Hello,
Please note that RUT950 is able to switch automatically from one SIM card to another, if one of the following conditions occurred:
On weak signal, On data limit, On SMS limit, On roaming, No network, On network denied, On data connection fail.
More information can be found here:
RUT950 has 3 WAN interfaces: Ethernet WAN, Mobile WAN, Wireless WAN. The Failover function allows you to back up your primary WAN connection in case it goes down.
More information can be found here:
On the other hand, it is possible to switch from one SIM card to another by using SMS.
The SMS Utilities section contains a list of rules that perform certain actions when they are activated by SMS messages.
Enter in your router’s WebUI, go to SERVICES > MOBILE UTILITIES and enable SIM switch action, The authorization method set by default is ‘router admin password’
To execute an SMS rule, send an SMS message to your device's SIM card number with the rule's SMS Text (switch-sim) preceded by the selected authorization keyword, which depends on the selected authorization method:
< router’s password> <TEXT>
xxxxx switch_sim
More information can be found here:
Should you need any additional information please let us know.
Best Regards