I understand the example of ProgrammerSought. You write that it is not possible to call a script via SMS. So something like the following will not work, correct?
curl -X GET "http://192.168.1.1/cgi-bin/sms_send?username=user1&password=user_pass&number=0037000000000&text=sh myscript.sh"
If the above does not work, is it possible that I create my own section via UCI, e.g. uci add mysection.senddhcplist and then sms: uci set mysection.senddhcplist = 1
With a seperate script on the modem I check ' if (uci get mysection.senddhcplist = 1) then do something'
Is this a way to go, or are there easier ways.