Additional Details ------------------------------ Product description: The Model KX-T7050 is Panasonic's mid-grade, non-display Proprietary Electronic Key Monitor Phone. It is compatible with the KX-T30810, KX-T61610, KX-T1232, KX-T123210, KX-T123211, KX-T123211D, KX-TD308, KX-TD816, KX-TD1232, KX-TA624 and KX-TA1232 Hybrid Telephone Systems. Features include: 12 Programmable Line Buttons 4 One-Touch Dial Keys; On-Hook Dialing; Hold Key; Flash Key; Redial; Conference Key; Transfer Key; Message Waiting Lamp/Key; Available in Black and White.