I'll save you some time. Choose from the prompts how to reset the system, then insert the batteries in the base station and all sensors and reset. Pre-programmed ringtone for zone 1, ringtones for zone 2,3,4 are pre-programmed and cannot be changed. I like the new system, I have the old one that is still in use, but there is a guide for the new system. sucks. I hope this saves you time and nerves.
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