Product Specification:
| Power | AC110V or AC220V 50-60Hz |
| Feed Currency | DC48V; 25mA |
| Ringing Currency | AC65v/50Hz |
| DISA | 15 second |
| Communication path | 7 |
| Extension number length | 2 to 4 digits |
| Caller ID | * Receive: Auto adapt DTMF, FSK (Bell.202) |
| * Send: FSK (Bell.202) | |
| Dial mode | DTMF |
| Degree of Unbalance about earth |
* 300Hz~600Hz≤40dB |
| * 600Hz~3400Hz≤46dB | |
| Transmission Attributes | * Extension to extension ≤1.5dB |
| * Extension to extension ≤2.0dB |
| Receiving Call Feature | Making call Feature |
| * DISA Auto-attendant | * Dial 0 or 9 for CO line |
| * Operator Attendant | * Extension outgoing call class |
| * Call Transfer | * Outside ( CO ) Line Duration Time Limit |
| * 3-party Conference Call | * Dial 9 or 0 to operator |
| * Call Pick up | * Allow extension use appointed CO line |
| * Unconditional Transfer | |
| * External and extension caller ID | |
| System Feature | Optional Feature |
| * Self-extension number confirmation | * UK/US/AU/EUR Power Plugs |
| * Total 15s OGM | * 110V or 220V power supply |
| * Power failure transfer |





