1. Two-Wire communication structure, compatible with ordinary two-core phone line, need not change line when network upgraded

2. Allows any extension ports of PABX connect with key telephone at the same time, plug and play

3. Supply max. of 30pcs DSS buttons, allows use expandable DSS key-board KB-96 that has 96pcs DSS buttons to extend max. of 144pcs DSS buttons

4. On-hook dialing, number dialed before lifts handset

5. Various working mode auto-switch

6. No Answer Transferred

7. Call waiting, you will not miss any important call

( can hold a maximum of 9 calls at the same time)

8. Out-call and In-call on holding/call retake

9. Intelligent redial / Callback

10. Paging ( telephone conference )

11. Two times alarm clock

12. Do Not Disturb (DND)

13. Interior Short Message(SMS)

14. Automatic time reckon when dialing and answering

15. Personal Password

16. Call record

17. Support CTI software, mouse controlling

18. Caller ID with the name of the caller

19. Telephone book, search by turn page

20. Programmable DSS button, allows program by PC software

21. Earphone available

22. System state display, LED indicator

23. Melody ringer to distinguish which extension is ringing

24. English menu, function programmed even without manual

25. 3.5-inch big screen LCD display

26. Calendar, Date, Time, Week Display

27. Green fluorescent screen for vision protection