Professional hotel telephone system with PABX

Professional hotel telephone system with PABX  

One key connect+10+8+5+3+0.
FSK/DTMF caller ID.
Receive and store incoming number while another line is busy.
16 digits LCD display.
Total / repeat/ out of area and private indicator for incoming information.
Calendar and auto adjust time under FSK system.
v80 incoming number and time store, review, callback and del function.
v25 outgoing number and time store, review, callback and del function.
3 way conference and music on hold.
Auto select line feature.
Different ring for two different line (Optional)
Local area code setting.
Flash time adjustble to fit for different exchange and three way talk, standard flash time is 900ms.