Only 2 Primary Contacts????? Why?

Why have professional monitoring if they are screwing around trying  to contact people.  Most police take forever to arrive, so the sooner they are dispatched the better.

^^this^^

Note they only call the first number if the smoke detector goes off.  Time is critical in a real situation, and every additional attempt at contact takes minutes.

You could ditch the landline. Unless its free to you do your really still need one? You can also look into something like a google voice phone number which is free. You can set that up to ring both your cell phone and your wifes cell simultanously. You could even include that line land with it. If allowed at work your computer can also be setup to ring. All of these can ring from just 1 phone number, its like the end of The Lawn Mower Man. :)