Could you provide me more information about option "Writing a custom script"?
On the wiki there is dialog box for startup script.
Does that uploaded file runs once or it runs in a loop?
Also I assume, that for a script to work I need to have email software inside of a router?
At the moment I can only think this kind of workaround: periodically check if there is a new email and forward it to the same mailbox (from me to me) with telephone number added to subject field
I am not familiar with shell scripts, sorry if this question looks stupid
Does this kind of workaround looks possible to do without firmware edit and only through shell script?