Ditching the landline - burglar alarm options

[w1bbles]

As the title says, I'm thinking of ditching the landline. We have a Scantronic 9751 alarm system that connects to our phone system and dials out when the alarm sounds. I'd like to keep the dial option but with no landline it will need to be something with a SIM in it I guess. Does anyone know of a Scantronic 9751-compatible solution for switching the telephone dialler for a mobile one? I could obviously change the whole system but I'd rather not as the business case for ditching the landline evaporates.

I'm not sure whether this belongs in Homes, Gardens & DIY but thought I'd try here.

Thanks.