- Account Codes
- Alphanumeric Display and Illuminated Dial Pad
- Attendant Call Queuing (Intercom Queue Key)
- Attendant Position
- Auto Redial
- Automated Attendant, Built-In
- Automatic Handsfree
- Automatic Line Balancing
- Automatic Ring Down
- Automatic Slot Configuration
- Background Music
- Barge In (Intrusion)
- Battery Backup
- Brightness Control
- Built-In Automated Attendant
- Built-In Message On Hold
- Built-In Modem
- Call Coverage Keys
- Call Forwarding
- Call Forwarding Off Premises
- Call Handling
- Call Timer
- Call Waiting / Camp-On
- Callback
- Caller ID
- Caller ID Logging
- Central Office Calls, Answering
- Central Office Calls, Placing
- Check Key
- Class of Service
- Clear Key
- Conference
- Conference, Meet-Me
- Conference, Unsupervised
- Contrast Controls
- Cordless Telephones
- Delayed Ringing
- Department Groups
- DHCP Support
- Dial Number Preview
- Dial Tone Detection
- Direct Inward Dialing
- Direct Inward Line
- Direct Line Access
- Direct Station Selection (DSS)
- Direct Station Selection (DSS) Console
- Directed Call Pickup
- Directory Dialing
- Display, Alphanumeric
- Distinctive Ringing
- Do Not Disturb
- Do Not Disturb Override
- Door Box
- Equal Access Compatibility
- Extended Ringing
- Extension Hunting
- Extension Locking
- Feature Keys
- Flash
- Flexible Numbering Plan
- Forced Line Disconnect
- Group Call Pickup
- Group Listen
- Group Ring
- Handsfree and Handsfree Answerback
- Headset Compatibility
- Hold
- Hot Dial Pad
- Hotline
- Interactive Soft Keys
- Intercom
- Key Ring
- Language Selection
- Last Number Redial
- Line Group Routing
- Line Groups
- Line Keys
- Line Queuing / Line Callback
- Line Schedules
- Line-To-Line Transfer
- Loop Keys
- Meet-Me Conference
- Message On Hold
- Message Waiting
- Microphone Mute
- Modem, Built-In
- Monitor / Silent Monitor
- Multiple Directory Numbers
- Music on Hold
- Names for Extensions and Lines
- Night Service / Night Ring
- Off-Hook Signaling
- One-Touch Keys
- Paging
- Paging, Meet-Me Conference
- Park
- PBX / Centrex Compatibility
- PC Program (System Administrator)
- PGDAD Audio Interface Module
- Primary Rate Interface (PRI)
- Prime Line Preference
- Privacy
- Privacy Release Groups
- Private Line
- Programmable Idle Menu Soft Keys (Super Display)
- Pulse to Tone Conversion
- Regional Defaults
- Removing Lines and Extensions from Service
- Reverse Voice Over
- Ring Groups
- Ringdown Extension
- Ringing Line Preference
- Room Monitor
- Save Number Dialed
- Selectable Display Messaging
- Silent Monitor
- Single Line Telephones
- Soft Keys
- Speed Dial
- Split (Alternate)
- Station Key Telephones
- Station Message Detail Recording
- System Administrator (PC Program)
- System Identification
- System Programming Backup and Restore
- System Programming Password Protection
- T1 Lines
- Tandem Calls / Unsupervised Conference
- Tie Lines
- Time and Date
- Toll Restriction
- Transfer
- Unsupervised Conference
- User Programmable Features
- Voice Mail (IntraMail)
- Voice Over
- VoIP Extensions
- Volume, Brightness, and Contrast Controls
- Walking Class of Servce