I just logged onto Panasonic CS-KMS Portal, and looked. There's nothing there for the KX-T7716.

Seems it would work with the Panasonic KX-TES824, TDE200, KX-TDA600/620, KX-TDE600/620, KX-NCP500 and KX-NCP1000.

In the world of technology, these babies are old! haha

Last edited by DonaldR; 09/22/22 12:15 AM.

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