Hi @Jane DeLoge
On the Home screen, click the Sounds icon. Verify that your sound profile is not set to either All Alerts Off or Silent.
If you have assigned a ring tone or alert to a specific contact, on the Home screen, click the Sounds icon. Click Set Contact Alerts. Click the contact alert. Click Phone or Messages. Verify that the Volume field is not set to Silent and the Vibration field is not set to Off.