KX-TD 816 CCU		  
Key Features:

• Standard features as KXTA
• Super Hybrid system
• DDI (ISDN feature)
• CLI (|ISDN feature)
• Max number of speed dials - 500
• Trunk conferencing
• Trunk transferring
• Least cost routing
• Parallel Connection

Optional Features:

• Door Intercom / Opener
• Voicemail
• CTI (Computer Telephony Integration)
• Panastat (Call Management Software)
• Dect Integration
• Remote Diagnostics

Initially supplied with 0 lines and 16 extensions (8 digital and 8 analogue using XDP).
Maximum size 8 lines and 32 extensions (16 digital and 16 analogue using XDP).

This digital super hybrid system supports both analogue and ISDN exchange line interfaces.
Maximum exchange line capacities:

ISDN 30 channels 8
ISDN 2E channels 8
Analogue lines 8