Nothing wrong with the accord, great little panel and programmable via the keypad providing you have the engineer code.
If you've bought a 7422 it's either second hand or stolen.
I would scrap it , adt and others will charge you, not being a bad thing to call in proffesional (adt etc) but you need to upgrade this panel like you do your phone or anything else and move with the times
Of course you could call them and be stuck with it for even longer , good in there time of course