This is going to sound crazy!
Last night our Bosch Solution 16 system emitted a loud chime (like a doorbell), then voices started talking from the control panel. No, I'm not mad or joking. I recorded some of it for about 1 minute.
It was definitely a live call, but using a voice changer. A male and female who chatted on for a couple of minutes as if they could hear our reactions. A female voice said "I am a friendly automated system ....... ". And a bloke's voice said "Come on mate, tell us what's your name ............". Later they said something like "Madam, please tell me your name. Your husband sounds quite, err, aloof"
Sounded like the prank phone calls I used to make as a kid! Our alarm is connected to our home phone line, to call me if necessary. But the phone didn't ring. AFAIK we don't have remote activation installed.
Anybody experienced anything like this?
Better still, tell me how to fix it!