The DSC SCW 9045 is and all-in-on wireless security system that allows you to add up to 32 433mhz wireless security sensors. The SCW9045 can hold up to 16 user codes and an additional code for designated towards the master code again which by default is "1234".

 The SCW 9045 is a bit of an older security system that is no longer manufactured and as far as communicating alarm signals back to the central alarm monitoring station it is limited to two options. 

The first option would be if you have a compatible phone/VOIP line wired directly into the 9045 panel. Once you have the phone line tied into your security system sign up for Phone line Alarm Monitoring with rates starting at No Contract $10/month

The second option would be a universal cellular communicator such as, the Telular Tg-1 Express cellular alarm communicator. The Telular TG-1 express is a great way to salvage this outdated alarm panel because it allows for more modern modes of alarm monitoring services with its new 3G/4G options through both AT&T and Verizon.