It wasn't easy to work as, with the power off and no battery installed, the external alarm was going off.
So I called in a pro in the end. All good now.
Thanks a lot for your response - appreciated.
Reluctant to take the cover off (Not sure if I have engineer code at this point - will try tonight), but looking at this...
http://rikain.com/Manuals/Intruder_alarms/Menvier/Workshop_Manual/Networker_Panels/TS690&TS690ID.pdf
I see there's a volume controller. Anyone know if it's possible...
Heeeeelp!
We have an alarm system with a TS690 panel.
We haven't armed it since we moved in many years ago. But yesterday the system was reset.
The panel is showing a "Phone line fault" and we're hearing a loud beep every minute or so. :-(
Is there a way to disable this beep - or...