1. Payphone function 2. Menu in both English and Chinese, switch the language duly. 3. Displaying time of incoming calls and dialed calls. 4. Records: Store up 10 incoming calls,10 dialed calls and 10 latest missed calls. 5. Phone book storing up to 400 pieces of numbers(200pcs in SIM card and 200pcs in phone) 6. Numbers group management: numbers can be sorted as Non-Dialing group, direct dialing group, local call and IP access code. 7. Automatically add IP number or area code. 8. Receiving and sending short messages in English or Chinese. 9. Hand-free function 10. Network management 11. Supporting phone locking, and SIM card locking. 12. Input in English or Chinese, Multi-input modes. 13. You can adjust the volume and select type of ring tone, no after-sound and side-sound. 14. Supporting call forwarding and incoming caller ID. 15. Supporting special SIM card. 16. GSM850/1900/900MHz or GSM900/1800MHZ or GSM900/1800/1900MHZ(optional) 17. Rate inquiring function for public use 18. Off hook ringing. 19. Support to connect external ring loudspeaker in the loud surroundings (Such as in vessels or vehicles). 20. LCD displaying coming calls and the number of calls. 21. Store up to 600 pieces of billing record. 22. Setting and displaying time and date; calling back, redail and hands- free functions. 23. Support carrier lock. 24. Support barred call. 25. Support remote network management. 26. Support IP prefix. 27. GSM900/DCS1800MHz dual mode adaptation. 28. Support hand-free calling and hanging up.