Factory installed 4 CO's and 4 Extensions. and No Caller ID

Features:

Multi-Cell Wireless with Handoff 
SD Card 
Voice Mail Integration 
PC Programming 
Message Waiting (Proprietary Phones) 
Dual Port Usage (Parallel SLT Station) 
Capacity : Up to 8 CO's, up to 24 Extensions (or 48 cell extensions)
Intercom Path : Non-blocking with proprietary phones 
Dialing Method : Tone/Pulse Dialing (by CO line) 
Dialing Conversion : Tone to Pulse or Pulse to Tone 
Power Failure Transfer 
Connections : CO lines: Modular Jack (RJ-11) 
Door Intercom : Wago Connector (included) 
Paging : Phono Jack 
External Music : 2-Conductor Jack 
SMDR : RS-232C 
Power Source : AC 120V, 60 Hz 
Absent Message Capability : Up to 6 
Account Code Entry 
Automated Attendant (with DISA/OGM) 
Automatic CO Hunting 
B.G.M. (Back Ground Music) Jack 
Call Back Busy 
Call Forwarding 
Call Hunting (Terminal or Circular) 
Call Log 
Call Parking Zones (10) 
Call Park Retrieve 
Call Pick Up 
Call Transfer/Transfer Recall 
Call Waiting Caller ID 
Caller ID Call Logging (20 Station)1 
Caller ID Call Back 
Caller ID Name and Number1 
CO Limited Duration Timer 
Conference Calling (3 party), up to 8-party calls 
Data Line Security (for Fax or Modem) 
Date and Time Display 
Delayed Ringing 
Distinctive Ringing Tone (Door Phone Intercom & CO) 
D.N.D. (Do Not Disturb) 
Do Not Disturb Override 
Door Intercoms : 4
Door Opener Contacts : 4
Duration Time of Call Display 
Electronic Station Lock 
Executive Override 
External Paging Ports (1) 
Flexible CO Keys (DSS/BLF, One Touch Dial) 
Flexible DSS Keys ( One Touch, Feature Access) 
Flexible Key Assignments 
Flexible Line Assignment 
Flexible Night Service/Programmable/Manual 
Flexible Ringing Assignment (Day, Night, Lunch) 
Flexible Station Numbering 
Hands-Free Answer Back Intercom 
Handset/Headset-Display Phones 
Hold 
Hold Recall/Hold Reminder 
Industry Standard Telephone Capability 
Internal Paging (All Call Paging) 
Internal Paging (Zone Paging)(8-Zones) 
Last Number Redial 
Limited Call Duration 
Live Call Screening (DPITS only) 
Live Call Screening, Remote (DPITS only) 
Log In/Log Out 
Lunch/Break Mode 
Memory Back-up 
Military Time Display 
M.O.H. (Music on Hold Input) 
Multi-Lingual Displays, 5 
Multiple Voice Mail Lamps 
Off-Hook Tone Signaling 
On-Site Programming 
Operator Call 
Pre-Selection (Central Office or Intercom) 
Remote Programming and Diagnostics Modem 
Remote Station Lock Control 
Ring Groups 
Ringing Line Preference 
Saved Number Redial 
Secret Dialing 
Seven Day ARS Time Tables 
S.M.D.R. (Station Message Detail Recording) 
Station Name Display 
Station Speed Dialer, 10 numbers 
Station to Station Messaging 
Timed Reminder 
Timed Reminder, Remote 
Toll Restriction 
Toll Restriction Override 
Tone/Pulse Conversation 
Tone/Pulse Dialing (by CO Line) 
Transfer (Screened/Unscreened) 
Trunk Groups 
Two-Way Record (DPITS) 
Two-Way Transfer (DPITS) 
Unattended Conference Call 
Walking Class of Service 
Pre-Installed Caller ID Card : No 
Single Line Device Integration, allows connection of many types of single-line telephone devices such as answering machines, cordless phones, fax machines, etc. 
Dimensions (H x W x D) : 14.8'' x 10.8'' x 4.6''