The Panasonic KX-NS5172X 16-Port Digital Extension-Card has the following features; 16 Port Digital Extension Card Additional 16 Digital Internal Ports (Max. 66 Lines w/ 4 Cards) Connects 32 Digital Camera System 4 RJ45 Sockets Connects w/ Speech Processors KX-TVM50, KX-TVM200 Connects up to 24 DPT w/ 1 Card Supports DSS & Voicemail Digital Integration Connect DECT Wireless System
