How to upgrade a new firmware for IP phones?

FAQ ID:12593
1 Download the newest firmware from our website www.flyingvoice.com;
2 Login the webpage of your IP phone, go to Administration-->Upgrade page;
3 Click to select the firmware you want to upgrade and click  to begin upgrading;
4 The IP phones will upgrade automatically and reboot itself; after the phones reboot, user can relogin the webpage and have a look at the firmware version to check if the phones have upgraded successfully.
Notice: 1) Do not power off  or disconnect the network when the phone is upgrading; these may damage the IP phones or the firmware file;
           2) Please contact with the technical support when user can not upgrade the firmware successfully.