Instructions in this article apply to iPhones runningiOS 8and newer.
How to Delete Voicemail on iPhone
Tapthe Phone appto launch it.
TapVoicemailin the lower-right corner of the screen.

image credit: Eugenio Marongiu/Cultura/Getty Images
Find the voicemail you want to delete.
Tap it once to reveal the options beneath it.
you’re able to also swipe right to left to reveal the Delete button.
Technically, the voicemail you just deleted isn’t totally gone.
you could still find it on your iPhone.
Tap each voicemail you want to delete.
You’ll know it’s selected because it’s marked with a blue check mark.
TapDeleteand all of the selected voicemails are deleted.
That’s because iPhone voicemails aren’t deleted until they’re also cleared.
Voicemails that you delete are not immediately erased.
Instead, they’re marked to be deleted later and are moved out of your inbox.
It’s like the Trash or Recycling Bin on your box.
When you delete a file, it gets sent there, butthe file still existsuntil you empty the Trash.
Voicemail on the iPhone works basically the same way.
The voicemails you delete are stored in your account on the phone company servers.
Manyphone companiesremove voicemails marked for deletion every 30 days.
But you may want to check that your voicemails are deleted for good right away.
To permanently delete voicemails on iPhone, stick to this:
Tap thePhoneapp.
If you have deleted messages that havent cleared, tapDeleted Messages.
TapClear Allto permanently delete the voicemails listed there.
This is only possible if the voicemail is still listed in Deleted Messages.
Tap the voicemail you want to undelete.
That’s the quick version.
We’ve also gota really in-depth look at undeleting voicemails on the iPhone.