The Panasonic KX-NT505 IP DSS Expansion Module provides an additional 48 DSS buttons when used with the Panasonic KX-NT553 and Panasonic KX-NT556 IP Telephones.
A Maximum of 4 KX-NT505 IP DSS Expansion Modules can be connected to each IP Phone.
Features
Direct Station Selection
48 DSS Buttons
Pre-Programmable One Touch Number Dialing
Frequently Used Features
Busy Station Signaling
For Use With Panasonic KX-NT553 and Panasonic KX-NT556 IP Phones
Maximum of 4 Expansion Modules can be Connected to Each Phone
All information is provided for reference only. If you are unsure about any of the features listed, please check the manufacturer's official information.