| Features | Description |
| Min Capacity | 4 Line 8 Extension |
| Max Capacity | 48 Line 128 Extension |
| Trunk | Support PSTN |
| Extension | Support Digital/ Single Line? Cordless Phone |
| Integrate | Auto Attendant/ Voicemail/ Call Billing Software/ Voice Logger System |
| Sensor Input (Build-in) | Door Phone/ Door Opener |
| Other | Paging/ Pick Up call/ Tele-Conference/ Call Restriction/ Ex-Music On Hold/ Power Failure Phone Port/ Speed Dialling， Caller ID |
