PLANET VIP-255PT - Manual (Page 51)

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Q9 : How to update the firmware?
A9 : 1. Update the firmware on the webpage Upgrade-> Select and Upgrade Firmware.
2. Select the correct file you want to download to the IP Phone then click the “Upgrade” button.
Q10 : How to auto provision?
A10 : Consult the auto provision server address with your ISP.
Q11 : How to adjust volume?
A11 : During a call, press VOL+▲/ VOL-▼ key to adjust the volume of earpiece or speaker.
Q12 : How to select ring?
A12 : 1.There are eight kinds of ring styles to choose.
2. Press the VOL+▲/ VOL-▼ key on the phone to choose the ring type.