2N Verso with a Panasonic KX-TA824 phone system.

Anyone know if theres an adaptor out there that can help facilitate these Panasonic phones to ring when a call is placed from the intercom?

Customer doesnt need to be able to talk (a plus if possible ) just needs to be able to ring the phones.

Maybe something inline before the CO reaches the PBX? I imagine Viking or someone has something like this?

Any help appreciated...