Power supply:AC220V¡À10% 50HZ(AC110V¡À10% optional).
External line:tone from local telephone office.
Temperature:32F---104F(0¡ae---40¡ae)
Relative humidity:20%-80%
Direction: Caller ID can be dis
Power supply:AC220V¡À10% 50HZ(AC110V¡À10% optional).
External line:tone from local telephone office.
Temperature:32F---104F(0¡ae---40¡ae)
Relative humidity:20%-80%
Direction: Caller ID can be display on extension (Compatibility FSK/DTMF)
Computer operator(auto-attend)
Billing port
Hold Music port
Broadcast port
Three-part conference
Telephone meeting
Extension call restriction
Flexible coding
Private pass-code
Call time limit
Call transfer
Call transfer on busy or no reply
Trunk group
Do not disturb
Operator break-in
Alarm call