Pick up the phone connected the ATA and dial: *** (* 3 times). Wait for the prompt and enter 02 to announce your current IP address.
Go to any browser equipped computer on your network and enter the address: <from voice prompt>
You will be prompted to enter a password, the default is “admin”, then click the “Login” button.
Go to ADVANCED SETTINGS tab.
SIP Server: <request from support>
Click on the “Update” button at the bottom of the form.
You will be brought to a confirmation screen on which you will click on the only option available: “Click to view your changes”.
Click on the “Reboot” button at the bottom of the form.