Panasonic KX-TDA/TDE networking options

The Panasonic KX-TDA50G, KX-TDE100 and KX-TDE200 systems let you choose the communication medium that works best for your business or home.
VoIP allows your business to connect over your existing
broadband network.ISDN transmits digital voice
data over your existing telephone wires. Both VoIP and ISDN feature QSIG, a high-level protocol for system-to-system communications, allowing your network to operate as
if it were a single, cohesive unit.A T1 network can connect from Point A to Point B over a crystal clear voice channel.Traditional "Category 3" (or higher) phone wiring will work just fine, too.