If you wish to have your DSC Alexor alarm system use residential dial (self monitoring) be sure to set the following sections appropriately:  Some of these are already defaulted that way but better to check them to ensure they have not been altered and are set correctly.

Section 301 should start with D then your tel# exactly as you would dial it from home then end in F
Section 350 should be 06 for residential dial
Section 351 should have option 1 turned on
Section 380 should have opt 1 enabled/on
         Section 320 should have all your (active) zones set to 11 as the reporting code. They default to FF