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Hi @mgeorge101
Welcome to the Community!
The TP-Link Archer modem/router only support the WPA2 security for the WiFi connection.
You may check the Manual of the device for its full specification.
Stay safe.
BasilDV
Hi @mgeorge101
You have the option to purchase a third party modem that will meet your criteria.
Please note, if you are under the NBN FTTN/FTTB/HFC/FTTC technology, which the handset is required to be connected directly to the modem/router. The VoIP service will not work if you're going to use a third party modem/router.
BasilDV