Flash drive built-in USB phone/sip phone/ip phone/

1. Built-in 128M bytes memory drive, memory can be updated to 256M/512M/1G/2G 2. Auto run function under windows 2000/XP, Vista 32/64 bits 3. Preloaded Softphone auto-runs with account information 4. Account information and chat history can be stored to be readable for end user. 5. Un-plug & close automatically without affecting PC system operation. 6. With LCD, keypad and ringer, easy to use like mobile phone. 7. Phone rings for all incoming calls, ring style and volume selectable. 8. Caller ID, echo cancellation, full duplex communication. 9. PC-to-PC, PC-to-phone, Phone to Phone operation.