Unlike the Excel you may not get an installation manual in the box, professional panel generally don't provide manuals as they expect you to know what your doing.
You maybe lucky enough to get one with a CD inside and therefore pdf manual.
ComGSM can be tricky to setup correctly and strong signal strength is a must.
Best to use a contract sim if possible as PAYG topping up can be an issue.
As with any this type of private reporting there is no polling so not fool proof security wise.
Exodus smoke detectors work well, however, an intruder alarm is best for intruder not fire for safety reasons.