Deskphone 6588 GSM Fixed Wireless Phone Support

Key features support gsm850/900/1800/1900mhz 2. caller id 3. dot-matrixed display with spanish,english, chinese, optional 4. sms function 5. ip no. setting 6. software upgrade jack 7. data service, support csd and gprs class 10/8. connect pc by usb port 8. call in / call out /call divert/ call waiting limitation function 9. lock up function: sim card, network, cell and operated company 10. local no. / direct no. / limited no. setting 11. speed dial function 12. redial function 13. support three-way conference call 14. save more than 100 sms on the phone 15. 7-level headphone volume and silence adjustable 16. speaker phone 17. low-power indicator