ISDN Primary Rate Interface Card.
Compatible with Panasonic KX-TDA100, KX-TDA200, KX-TDA600, KX-TDE100, KX-TDE200, KX-TDE600 Phone Systems
This Panasonic PRI Card supports 23 B channels + 1 D channel
External Channel Service Unit (CSU) required
Allows access to features such as DID Service which gives each person their own direct telephone number
Compatible with Carrier Provided Caller ID
Supports PRI Circuits and Integrated Access T-1 Circuits, speak to your service provider about circuit hand off
Card requires 1 free slot