Migrate scripts from mikrotik-scripts repo and make further improvements for the first commit!

scripts/sim-toggle.rsc

@@ -0,0 +1,40 @@
+# Toggle SIM Slot in LTE Modem.
+
+# Applicable for RouterOS above 6.45.1
+# see https://wiki.mikrotik.com/wiki/Dual_SIM_Application#Initial_settings
+# see https://forum.mikrotik.com/viewtopic.php?f=13&t=159520&p=816964#p816964
+
+:log info "\nSIM toggled by the script..."
+
+/system routerboard modem
+
+:local oldSlot [get sim-slot]
+:local newSlot
+:local oldOperator
+:local newOperator
+
+:if ( $oldSlot = "a" ) do={
+  :set $newSlot "b"
+  :set $oldOperator "BSNL"
+  :set $newOperator "Airtel"
+} else={
+  :set $newSlot "a"
+  :set $oldOperator "Airtel"
+  :set $newOperator "BSNL"
+}
+
+set sim-slot=$newSlot
+
+# Speed restrictions enable / disable
+:if ( $newOperator = "Airtel" ) do={
+  /queue simple enable Airtel
+  /ip firewall filter disable [find action=fasttrack-connection]
+} else={
+  /queue simple disable Airtel
+  /ip firewall filter enable [find action=fasttrack-connection]
+}
+
+:log warning "LTE SIM SLOT will change from $oldSlot to $newSlot";
+:log warning "LTE SIM SLOT will change from $oldOperator to $newOperator";
+:log info "Please hold on while switching SIM. Internet will come back in a few seconds."
+:delay 2s