• Account Codes
  - Forced
  - Voluntary
  - Verifiable
   
• Alarm Sensor Interface* - DK40i only
   
• All Call Voice Page
   
• Alternate Point Answer
   
• Amplified Conference Interface (Optional)
   
• Automated Attendant (Optional)*
   
• Automatic Call Distribution
  (Optional)* - DK40i only
  - MIS Interface (Optional) - DK40i only
   
• Automatic Number Identification
  (Optional)* - DK40i only
   
• Automatic Release From Hold
   
• Automatic Station Relocation
   
• Auxiliary Device Interface (Optional)
   
• Background Music Interface*
   
• Busy Station Transfer/Ringing
   
• Call Park Orbits
   
• Caller Identification (Optional)*
   
• Centrex Application
  - Centrex Ringing Repeat
  - Flexible Station Numbering
  - Delayed Ringing
  - One-Button Centrex Feature Access
  - Centrex/CO Line Call Pickup
  - Centrex/CO Line ID
  - Flash Button
  - Multi-Line Access and Control
   
• Centrex/PBX Compatibility
   
• CO Line Groups
   
• CO Line Queuing
   
• Conferencing
  - Multi-Stations
  - Multi-CO Lines
   
• Credit Card Calling ("O"+ Dialing)
   
• Dialed Number ID Service (DNIS)
  Optional - DK40i only
   
• Day/Night Modes
   
• Delayed Ringing
   
• Direct Inward Dialing (DID)
  (Optional) - DK40i only
   
• Direct Inward System Access (Optional)
   
• Distinctive Ringing
   
• DTMF and Dial Pulse Compatible
   
• DTMF Signal Time (160/80 ms)
   
• Dual FCC Registration
   
• E911-CAMA and PRI - DK40i only
   
• External Amplified Speaker (Optional)
   
• Flexible Button Assignment
   
• Flexible Station Numbering (2 to 4-digits)
   
• Flexible Line Ringing Assignment
  - Immediate
  - Delay 1
  - Delay 2
   
• Flexible Port Assignment
   
• Ground Start Lines (Optional) - DK40i only
   
• Group Paging
   
• Intercom Hold
   
• Integrated Services Digital Network
  (ISDN)* - DK40i only
  - Basic Rate S/T Interface (BRI)
  - Basic Rate U Interface (BRI)
  - Primary Rate Interface (PRI)
   
• Least Cost Routing
   
• Live System Programming
   
• Loop Start Lines
   
• Memory Protection
   
• Message Waiting
   
• Multiple Directory Number
   
• Music-On-Hold Interface
   
• Night Ringing Answer Code
   
• Night Ringing Over External Page*
   
• Night Ringing Over Selected Page Zones (Optional)* - DK40i only
   
• Non-Blocking Dialing
   
• Non-Blocking Intercom
   
• Off-Premise Stations (Optional)*
   
• Outgoing Call Restriction
   
• Page Interface (4 Zones Optional on DK40i)
   
• Pooled CO Lines
   
• Power Failure Transfer
   
• Privacy/Non-Privacy
   
• Relay Service (Optional)
  - Door Lock Control
  - External Page Control - DK40i only
  - Music-On-Hold Source Control
  - Night Relay Service
   
• Remote Administration/Maintenance (Optional)*
   
• Reserve Power*
   
• Standard Telephone Compatibility with Message Waiting*
   
• Station Hunting
   
• Station Message Detail Recording (Optional)*
   
• System Speed Dial (40 numbers)
   
• System Programming Through Station
   
• System Program Upload/Download (Optional)*
   
• Tandem CO Line Connections
   
• Tenant Service
   
• Toll Restriction (6-Digit)
   
• Toll Restriction Override
   
• Traveling Class of Service
   
• Tie Lines Transfer Recall - DK40i only
   
• Tie Lines (Optional) - DK40i only
   
• T1/DS-1 Interface (Optional) - DK40i only
   
• Voice Mail Integration
  - In-band DTMF Signaling
  - Simplified Message Desk Interface (SMDI)
   (Optional) - DK40i only
   
• Voice or Tone Signaling
   
• Wall or Floor Mountable KSU
   

Digital Telephones
 

• Single Line Digital Telephone
   
• 10-Button Speakerphone
   
• 10-Button Speakerphone with Liquid Crystal Display
   
• 20-Button Speakerphone
   
• 20-Button Speakerphone with Liquid Crystal Display
   
• 20-Button Add-On Module
   
• 60-Button Direct Station Selection Console - DK40i only
   
• 900 MHz Digital Cordless Telephone
  

• Alphanumeric Messaging
  - Busy Station Messaging
  - Called Station Messaging
  - Calling Station Messaging
  - Custom Personal Messages
  - Group Station Messaging
  - Standard System Messages
   
• Automatic Callback Number Display
   
• Automatic Number Identification (Optional) - DK40i only
   
• Automatic Park In Orbit
   
• Busy Lamp Field
   
• Call Duration Display
   
• Call Forward Source/Destination
   
• Call Forwarded-From Display
   
• Caller ID (Optional)*
  - Abandoned Call Storage with Date/Time
  - Name
  - Telephone Number
   
• Calling/Called Number Display
   
• Clock/Calendar Display
   
• CO Line Identification
  - Incoming/Outgoing
  - DNIS Display - DK40i only
   
• Dial Input Verification
   
• Feature Activation Display
   
• Feature Prompting with Soft Key Operation
   
• Intercom User Name Display - Idle or Busy
   
• Message Waiting Station Display
   
• Override Station Number Display
   
• Private CO Line
   
• Recalling Station Identification
   
• Speed Dial Directory Dialing
   
• Station Status Display
   
• Timed Reminder Memo
  

Station Features
 

• Account Code Button
   
• Account Code Revision
   
• Alert Signaling
   
• All Call Voice Page
   
• Automatic Busy Redial*
   
• Automatic Callback Intercom
   
• Automatic Dialing Buttons
   
• Automatic Hold
   
• Automatic Hold/Park Recall
   
• Automatic Off-Hook Line Selection
   
• Background Music with Station Control*
   
• Busy Override
   
• Call Forward
  - All Calls
  - Busy
  - No Answer
  - Busy/No Answer
  - Fixed
  - External with Remote Setting
   
• Call Park to Station
   
• Call Pickup
  - On-Hold/Park
  - Ringing At Other Stations
  - Meet-Me Page
  - Directed
  - Station Group
  - CO Line Group
   
• Call Transfer
  - Camp-On
  - External Calls
  - Internal Calls
  - Recall
   
• CO/Centrex/PBX Feature Buttons
   
• Continuous DTMF Signal Time (Optional)
   
• Direct Station Select/Busy Lamp Buttons
   
• Direct Station Selection Console
  (Optional) - DK40i only
  - All Call Voice Page
  - Automatic Line Hold
  - Expanded Line Appearance
  - Multiple DSS Consoles
  - Night Transfer
  - Speed Dial Button Assignment
  - Voice or Tone Signaling
   
• DISA Security Code Revision
   
• Distinctive LED Indicators
  - I Called
  - I Hold
  - I Use
   
• Do Not Disturb
   
• Do Not Disturb Override
   
• Door Lock Control
   
• Door Phones
   
• DP/DTMF Mode Change
   
• Dual Color LEDs
   
• Exclusive Hold
   
• Executive Override (Break-In)
   
• Executive Override Blocking
   
• Flash Button (CTX/PBX Transfer or CO Dial Tone Recall)
   
• Handsfree Answerback Intercom
   
• Headset Interface (Optional)
   
• Hearing Aid Compatible
   
• Loud Ringing Bell (Optional)*
   
• Message Waiting Indication
   
• Microphone Control Button
   
• Modular Handset and Line Cord
   
• On-Hook Dialing
   
• Off-Hook Call Announce
  - Handset
  - Speaker (Optional)
   
• Pooled Line Buttons
   
• Privacy Override
   
• Private CO Lines
   
• Push-Button Dialing
   
• Remote Retrieval of Held Calls
   
• Repeat Last Number Dialed
   
• Ringing Line Preference
   
• Saved Number Redial
   
• Station Speed Dial (40 Numbers Per Station)
   
• Toll Restriction Override Revision
   
• User Programmable Feature Buttons
   
• Volume Control
  - Busy Override Tone
  - Handset
  - Handsfree/Speakerphone
  - Ringing
  

Data Features
 

• Computer Telephony Integration (CTI)
  - TAPI Compliant
   
• Data Security Groups
   
• Data Switching
   
• Keyboard Dialing (Voice or Data Calls)
   
• Modem Pooling
   
• PC-to-PC Connection
   
• Printer Sharing
   
• Simultaneous Voice and Data