You would need an analog port for the chime/strobe. Then program the analog ext. to ring at the same time as x120. You might need an ATID (Comdial digital to analog converter) for the analog ports if you do not have any open. I have used the Wheelock chime in noisy environments (busy restaurant kitchen) with satisfaction from the customer. The Wheelock UTA-WH-VPS is a combo strobe and chime.

Steve