I've big one which was on the desk with pens in it.
There not much pormo stuff in the alarm trade.
Mugs, powersonic, duahu, dualcom... & an Eaton l keyring.
ADSL on the alarm telephone line will interfere with the Alarms ability to here the tones which make it stop dialing.
A "working telephone line" can have a ground fault can interfere with the Alarms ability to here the tones which make it stop dialing.
Normaly your contract would state the call charges are your responsibility.
There is probably a ground fault, star services or adsl on the line which interferes with the digi hearing the acknowledgment of the signal & to stop trying.
I'd assume the installer gets a report of sites which have't done a signal in 24hrs or report of sites with excessive signals.
You may ask them why they didn't act on the information... In turn they might ask why you run it up to £600.
I'd assume the goodwill of you telecoms provider & alarm co. would cover most of your costs
you can't really be a proper alarm co. without a team.
do you really want to deal with the day 2 day shit of being an alarm co. ?
My top tip is to trade under a name which does no define what you do-
so no to Grant Alarms or Grant Fire & Security
maybe to The Eddie Grant Group or Purple Pelican Ltd
Good luck
much less so than using the internet...
You've delegated control to somebody... if your unhappy with this ask them to delete your cloud a/c & then you can do as you please defaulting system / creating a new cloud a/c
However this may effect warranty, maintenance or insurance requirements
,
you'd ring up on telephone no. with a few digits missing. to company that no longer exist that left Bristol decades ago & they'd kindly sent you a paper book if it was still in print....
or maybe they'd fax it to you... remember faxs ?