If there's no dial tone, do the following:
- Check if your phone is properly plugged to the outlet
- Check if the internet connection is connected by securing the ethernet wire connection between phone and modem/router
If phone has a dial tone but can't receive call even if it's active, do the troubleshooting steps below:
- Ensure the DND (Do Not Disturb) is not on by pushing the DND button. You will see the DND button light, and then push it gain to ensure the DND light goes off. If the light goes off, that means that DND is not engaged
- Change the ringtone as sometimes the phone reverts to silent mode. You can change the ringtone by pressing:
Menu > Settings > Basic Settings > Sound > Ringtones > Common > Option 1