IOS SOFTWARE
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if Messages are still getting muddled up, try resetting just your Network Settings
QWhy does my iPhone running iOS 12.2 confuse the different messages it has received in my Voicemail, and how can I fix it?
AVisual Voicemail is mainly the responsibility of your phone service provider, rather than iOS. Not all providers support it: it’s one of the optional features listed by region and provider at bit.ly/mfwcsupp.
For a provider to support Visual Voicemail, they have to run a server which supports IMAP, the same protocol which is used for many email services such as Apple’s. This can also convert incoming spoken messages into short text items similar to email. To collect your Visual Voicemail, your
iOS device then asks that server for those new messages, and downloads them to your iPhone. This is all configured using SMS.
When messages are getting confused, it’s most likely that there’s a misconfiguration. To deal with that, update your iPhone to the latest version of iOS, which also addresses a vulnerability in Voicemail prior to iOS 12.3. Check for any carrier update in Settings > General > About, and apply that as instructed.
You might find that you can work around this by saving your messages as notes or voice memos. To do that in Voicemail, tap the message then tap Share, and tap Voice Memos or Add to Notes.
If your messages are still getting muddled up, try resetting just your Network Settings in Settings > General > Reset. Beyond that, contact your service provider. Their engineers should be able to iron out any issues with your IMAP mailbox on their server.