You have decided to monitor your own burglar alarm, CCTV, or personal medical emergency system to save money;  a reasonable judgment call, but not advisable.  Ever wonder why fire alarm systems are required to be monitored 24/7 with dual phone communication?   Reliability.  Having alarm activations report to your mobile phone assumes that:  your mobile service is dependable (no dropped calls), you always have your phone with you, limited down time for power re-charges, and you are always able to answer in-coming calls.  Minimize "foresight" issues, transfer responsibility and liability to a reputable UL licensed monitoring center.  #DIYmonitoring  - Dan, USA Security Net, Field Service Manager