tem Parameter
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
TC-424P Incoming CO Line Local Station(Extension) Expandable or not
Capacity 4 24 No
Auto Attendant
Three-way conference
Call forwarding
Extension class assignment
Call pickup
Power failure transfer
Easy to install