1. Any extension port can be connected with our key telephone (or standard phone), plug and play;
2. Support CTI software (Computer Telephone Integrated);
3. Caller ID transferred;
4. PC Billing function, also can program function by PC, etc.;
5. Twin routes 3pcs OGM for DISA, total 30 seconds;
6. Station lock;
7. Outward code dialing (least cost route, can save call fee);
8. Make outside call by code (speed dialing, increase your work efficiency);
9. Auto add IP code when dial long-distance call;
10. Auto detect Fax Signal;
11. Extension free notice;
12. Allows has maximum of eight extension ringing at the same time;
13. One touch dialing, allows call to operator by one key;
14. Busy transferred;
15. Unconditional Transferred;
16. Call Transferred to Secretary;
17. Do Not Disturb (DND);
18. Day and Night service;
19. Remote program, more convenient and easy after service;
20. Pulse and Tone mode setting;
21. Enable/ disable outside caller reaches extension by one touch dialing;
22. Outside line ring by turns (allows assign extension ring by turns when has outside call);
23. Extension number assignable freewill (2, 3 or 4 digits);
24. Hot line (Call to operator as soon as lifts handset without any number input );
25. Monitor voice record;
26. External music input;
27. Extension outgoing call class;
28. Outside (CO) Line Duration Time Limit;
29. Party Conference (between 2 extensions and 1 CO line);
30. Party Conference ( among 3 extensions);
31. Executive busy override;
32. Self-Extension Number Confirmation;
33. Broadcast;
34. Various Outside (CO) Line Access Mode Selection;



