Lumen help
If you get a URL error on your VoIP phone after bootup, you need to verify the VLAN setting. It’s a good idea to do this when you set up your phone at a new location, such as taking your phone from (or back to) your office.
To verify the VLAN setting of your VoIP phone:
Important: When you take your phone off the Lumen network, Lumen service level agreements, quality of service (QoS), and the ability to connect to the VoIP platform are not supported. Troubleshooting is limited to providing phone and router/firewall settings.
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