What happens if the intruder cuts the telephone line before breaking in?

In that case you will still be protected by the alarm’s normal operation and sounders, however the telephone dialler will not be able to perform the calls. This can be resolved by opting to have a GSM dialler, which works on the same principle of a normal mobile phone and therefore does not need a telephone line to make any calls. A SIM card (provided from a local service provider, not Alberta) will be inserted into this dialler, and once the alarm is triggered, the dialler will perform the call from that SIM card without the need of any telephone line.