Make sure your telephone is set to its tone setting (not pulse). For instructions, consult the phone documentation. After you verify that tone setting on the telephone, complete the steps in the next section.
Ensuring the Network has an Active Internet Connection
After ensuring that you have an active Internet connection with your network, try to access the Internet and check if the router's Internet LED is lit. If you do not have a connection, power off your network devices, including the router and cable/DSL modem. Wait for 30 seconds and power on the cable/DSL modem first then power on the router and other network devices. After you verify that the network has an active Internet connection, complete the steps in the next section.
Verifying Account Information and Confirm that the Phone Line is Registered with VOIP Provider
The phone number, status of this Internet phone line, and other registration details are displayed on the router's Registration Status. If it is not registered, you should register it with a VOIP provider. For instructions, click here.