Many commercial alarms have a built-in modem. The answer scenario is: Call the assigned alarm modem trunk/line and ring 1 or 2 times, then hang up. Call back within a minute or so and the modem answers IMMEDIATELY. Most alarms can have the 1-2 rings set out to 8-10 rings. That normally cures the problem. Just that then the AA can't be rung through the KSU at night on the alarm line/trunk. That way the alarm guys can call in after hours and 'do their thang'. Another problem that can be easily cured. Many alarm installation guys use the Published number line. Have them connect through the LAST line in the hunt group! And if you can, make it be the last line seized on outbound calls in the KSU. (This may take some 'fanagling')

When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.