Alarm system

Can anyone help. SIM card working in phone and tablet,but will not work in gsm alarm. Any suggestions.

The people that make the Gsm alarm system would need to advise

I will also check if there are any limitations on the SIM side Jeff2703. I'll let you know once I have more info.

Hi Martin.did you find any limitations on sim. Would like to stay with Lebara but need to get alarm working. Contacted alarm company and they confirmed it was down to sim. As I stated alarm works on giffgaff sim.

Jeff2703 yes so Lebara SIMs offer calls, SMS and data without restrictions so compatibility will depend on the 3rd party device, rather than the SIM which has no built in restrictions.