Here's how to enable Nomorobo on Spectrum (Formerly Charter):
1. Login to your Spectrum Account.
2. Click the Phone Icon at the top right.
3. Under Settings, click Simultaneous Ring.
4. Click On.
6. Click Save.
7. After you've completed those steps, go back to your Nomorobo Account.
Go to "Your Phones" and click "Test" next to your number. Then click "I'm ready. Call Me Now."
You will immediately receive a call letting you know if everything is setup correctly. Please pick up the phone after the third ring.
8. Your number will now be listed as "Protected".