Aastra 9480i CT User Manual page 209

Why does my phone display the "No Service" message?
The phone displays the "No Service" message if the SIP settings have not been set up correctly.
Contact your System Administrator for more information.
How do I change my user password?
You can change the user password from the IP phone UI or the Aastra Web UI.
IP Phone UI
Options Options
1. Press on the phone to enter the Options List.
2. Select Password and press Select.
3. Enter the current user password and press Enter.
4. Enter the new user password and press Enter.
5. Re-enter the new user password and press Enter.
A message, "Password Changed" displays on the screen.
Aastra Web UI
1. Click Operation->User Password.
2. In the "Current Password" field, enter the current user password.
Note:
By default, the user name is "user" (not case sensitive) and the password field is left blank. If you have forgotten your
password, contact your System Administrator for assistance.
3. In the "New Password" field, enter the new user password.
4. In the "Password Confirm" field, enter the new user password again.
5. Click Save Settings.
For information about changing your password, see
41-001381-00 REV01 – 06.2013
"User Password" on page 43.
Troubleshooting Solutions
201