| Capacity | CO Capacity | 4 |
| Extension Capacity | 24 |
| Expandability | Yes |
| No.of Port on C.O. Card | 2 |
| No.of Port on EXT. Card | 8 |
| Wireless Expansion Board | optional |
| Wireless Trunk type(GSM/CDMA) | GSM/CDMA |
| Max Wireless Trunk Lines | 1-4 |
| External Hardware Interface | Keyphone Interface | optional |
| Door Phone | Yes |
| Door Lock Opener | optional |
| External Broadcasting Interface | Yes |
| External Music On Holding | Yes |
| RS232 Series Port | optional |
| Backup Battery Interface | optional |
| Operator | Keyphone Interface | optional |
| Operator/auto-attendent Mode | Yes |
| Operator Designation | One/Two |
| Day/Night Mode(Auto) | Yes |
| Day/Night Mode(Manual) | Yes |
| Music & Ringing | Recordable OGM(outgoing message) | |
| 20 seconds | optional |
| 50 seconds | optional |
| 60 seconds | Yes |
| 90 seconds | optional |
| Internal Music On Holding | Yes |
| External Music On Holding | Yes |
| Ring assignment(CO-Ext group) | Yes |
| Ring Identify | Yes |
| System CRBT | Yes |
| Caller ID | External Caller ID | Yes |
| Intercom Caller ID | optional |
| Transfer Caller ID | optional |
| Call operation | Call Transfer | Yes |
| Call Forwarding | Yes |
| Outgoing Call Transfer | Yes |
| CO to CO Transfer | Yes |
| Call Switch(pickup in conversation) | Yes |
| Call Pickup(External call) | Yes |
| Call Pickup(Internal call) | Yes |
| CO Line Reservation(Call waiting) | Yes |
| CO Line Booking | Yes |
| Specific CO Line Dialing | Yes |
| Call all Extensions | Yes |
| Three way conference | Yes |
| Do Not Disturb | Yes |
| Auto/Manual Dial-Out Mode | Yes |
| Internal Hot Line | Yes |
| Internal Fast Dialing | Yes |
| Abbreviated Dialing | Yes |
| Auto IP Dialing | Yes |
| Private password | Yes |
| Redial in Indirect-dailing-out Mode | Yes |
| Billing&Management Software | Billing Software(Include program) | optional |
| Reverse Polarity Signal | Yes |
| Alarm Clock | Yes |
| Other Feature | Call Restriction | Yes |
| Call Duration Control | Yes |
| CO Line & Exts Monitor | Yes |
| Exts Groups | Yes |
| External Line Group | Yes |
| Ringing Assignment | Yes |
| Real Time Clock | Yes |
| Intelligent Routing(LCR) | Yes |
| Flexible Coding(Change Ext.No.) | Yes |
| Automatic Ext. Reporting | Yes |
| Flash Time Choice | Yes |
| System Password | Yes |
| Automatic C.O.Line Detection | optional |
| Remote Programming | Yes |
| Menory Protect While Power Off | Yes |
| Multiple Communications Channel | 8 |
| Fax Detection | optional |
| Power Failure Transfer | Yes |
| Lightning Protecting | Yes |
| Housing Material | Metal |
| Power Supply | Switch Power | Yes |
| Backup Battery Interface | optional |