Take a look at https://learn.adafruit.com/network-interface-failover-using-fona If you want to see what Alan is talking about. I’ve not used the Adafruit card, yet. But it’s on my hacking list of to-do. johno
On Sep 14, 2015, at 11:08 AM, A.L.M.Buxey@lboro.ac.uk wrote:
Hi,
Today we use a product from MultiTech Systems call MultiModem iSMS to send SMS text messages from our monitoring system to our on call staff. This is a 2G product and we need to replace it soon. I know there are more generic cellular modems that can do texting if you are willing to put in the effort, the product we use currently though has a simple HTTP based API specifically to send SMS. Is anybody out there using something similar that can work on 3G or 4G networks?
we have a Linux box with a 3G device attached via serial port. some local scripts and a lookup table - sends SMS alerts for monitoring to the required people. very basic, very simple. RaspberryPI territory.
alan