If you are unable to stop or disarm your intruder alarm system then call our office 01282 451300. If your call is out of hours, listen to the instructions and if you require an engineer please call the on-call engineer who will attend the site at your request. Please note; all call outs are chargeable. Only PPM / Contract customers can use the GBIS out of hours service. Do not cut any wires! this will only make things worst.