I've just ordered a Hotline Phoenix 1600 with the mobile control interface for quite a bit less than a Rappa 15000i with the remote. It'll let me switch it remotely but it'll also text me if the line voltage drops or is shorted, ideal as I'm about to use electric fence near the gypsy camp for the first time in 20 years .
I'll let you all know how I get on with it once it's in use.
you need a sim card for texting bit ?