The Panasonic KX-TDA3280 BRI2 (KXTDA3280) Card is a 2 x ISDN2 line card providing 4 channels and is compatible with the KX-TDA15 and KX-TDA30 telephone systems.

2 Circuit - Providing 4 Channels Of ISDN2

Compatible With KX-TDA15 and KX-TDA30