NEC Electra Elite IPK II System User Manual page 968

Document Revision 4C
System Availability
Terminals
All Stations
Required Component(s)
DTI-U40 ETU with firmware V5.00 or higher
Locally provided CSU/DSU
Required Software
Version 1100 or higher
Related Features
Caller ID
Central Office Calls, Answering
Central Office Calls, Placing
Code Restriction
Dial Tone Detection
Direct Inward Dialing (DID)
ISDN Compatibility
Station Message Detail Recording
Tie Lines
2 - 944 T1 Trunking (with ANI/DNIS Compatibility)
Electra Elite IPK II