Just came upon this page – followed each successive step – the RESET NETWORK SETTINGS solved my issue, perfectly. Thank you so much for this tutorial – saved me a ton of aggravation, money and time.
Select Phone.Select Voicemail.Select Call Voicemail.Calling Voicemail. If your voicemail is calling like on this screen, your phone is set up correctly. If not, follow the next few steps.Select Keypad.Enter the Voicemail number and select Call. **004*#Select Dismiss. Select the Voicemail tab. Note: Alternatively, from the phone app, select the Keypad tab > select and hold the 1 key > if prompted, enter your voicemail password > follow the prompts to listen to your messages.

With this method, you don’t need a third-party app. Call the person you want to chat with, then tap the “Add Call” button on your phone’s screen. Dial your own phone number—the one you’re calling from. This will take you to your voicemail. Once your voicemail has started recording, tap the “Merge Calls” button on your screen. Now, you’ll record your phone conversation onto a voicemail message. When you’re done with the call, you can tap the share button to export it to your Mac via Airdrop, to the Voice Memos app, or transfer it via email or text message. The file is recorded as an M4A, so depending on what you want to do with it, you may need to convert it to MP3 before uploading it to other apps.
Voicemails need to maintain a professional consistency that’s aligned with the entity it’s representing. That said, the structure can vary depending on the situation. There’s no template set in stone. In fact, trite and generic should be off the table. The goal should be a balance of uniqueness and practicality.