Panasonic KX-T7425

Features: 24 programmable keys, hands free answer back on intercom, message waiting light, Off hook whisper page, handset & speaker volume control, Do Not Disturb, Hold, Transfer.

Compatible with: KX-TD308, KX-TD308-1, KX-TD816-3, KX-TD816-4, KX-TD816-5, KX-TD816-6, KX-TD1232-3, KX-TD1232-4, KX-TD1232-5, KX-TD1232-6, and KX-TD1232-7.