I agree with John. It's a JHA/FM call. My money is on although you are replacing the FA system, a recall system is elevator mechanical so it may not be required to be upgraded unless the elevator equipment is being replaced as well. I know some elevator systems can be retrofitted with a recall system but not necessary all elevator systems. Modifying elevator equipment in the field is not as easy in the field as one may seem. Lots of liability involved and strict rules.
"Live Awesome!" - Kevin Carosa