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.
The main interface of the recorder is like a control bar. From here, turn on "System Sound" to capture any audio coming out from your device. Next, hit the "REC" button to start recording. You can play the voicemail at this moment.

Voicemails don’t necessarily have to be monotonous or extremely jazzy or funky. What you should be looking for is a balance between the two. Whenever you call someone and their voicemail greeting is playing, it tells you a lot about who they are, as a person. Which is why, you’ve got to put a little bit of “you” when it comes to voicemail. And the best part about all of this is, since you couldn’t come to the phone, at least the callers are having a good time listening to the message.
Helo, I have 15 saved voicemails from Grandmom who passed suddenly. My problem is that I need to take words from each vm to create one beautiful voicemail for my grandaughter for HS graduation.They were very close, and I know she would love to hear her voice congratulating her on her accomplishments, and to tell her that she loves her…I need help, Thank you