adding GSM to a Vista 20p module

So. After many hours of research I came to the conclusion of buying the vista 20p + evisalink 4 for self monitoring .

I tried contacting local alarm companies but their fees go from 350 to 550 USD /year for monitoring. So I decided to self monitor using GSM

Is there a module I can use to self monitor since the companies like alarm.com don’t operate in my country ?

My first solution is to contract a GSM modem for my home and use to provide internet to evisalink at all times , so even if burglars kills the switch and the telephone the sistema would still operate.

Thanks

submitted by /u/huces01
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