iphone plus (7)

Hello @evbrod

When hearing the "voicemail box is full" message can be annoying. Let's help get your voicemail back on track!

1. Press and hold the 1 key on the phone dial screen.
2. If prompted, enter the voicemail password.
3. When you hear Check erased messages, press 1 >9
4. After the message plays, press 7 to permanently delete it

It is also important to have you iPhone updated to the latest software to improve your voicemail settings and features.

If you continue to have trouble in the future, you can also use our Device troubleshot & Resolve Tool/ iPhone 7,7+ by selecting Voicemail underneath the Service/Network Issues section to follow the steps provided.

We hope this is helpful, and thanks for reaching out to the community!

Dwight, AT&T Community Specialist