cannot clear deleted voicemail on IOS7

same issue here on iphone 5 with ios7

I'm having this issue too on iphone 4 with iOS 7 newly installed

I have the same issue with an iPhone 5 and newly updated iOS 7 via iTunes. After some fiddling, desperate because my VM was tapped, I found that the "Edit" button plus the "red minus sign" tap would move the mail to the Deleted Box, but would not allow for clearing. The finger swipe method to delete, however, will both move the mail and allow for clearing. A group of messages moves by both methods will return an unclearable Deleted Box.

Hopefully this gets fixed soon

upon reboot i was able to clear deleted voicemails

Yes! Rebooting solved the problem.

AT&T Tech support checking in here. Just resolved this issue for a customer by clearing out the physical voicemail box in the background, it had 100 messages saved in it. Call your own phone number, or press and hold the '1' key, and you should be able to delete all of your messages. After we did this, messages deleted from Visual Voicemail no problem. Voila!

I don't know if this is the same issue, but I find it very difficult to delete voicemails in ios7 (not sure what you mean by clearing). The red delete button briefly shows, then the screen changes to the contact's info. Is there some trick? My VM box is 90% full.

I'm longing for the ease of use of ios6...

That did not work for me. I went through and deleted them all. Rebooted phone. The messages are still in there. They cannot be killed.

I cannot clear mine either and I am 100% full!

This is a work phone and completely unacceptable.

Ok - it finally worked. After waiting a while the gray "clear all" turned blue.

In my 20 years of using Apple products I have never been so frustrated...

This is ridiculous. Now my messages all came back. I've deleted them in both places four times and they won't go away....

This keeps happening to my voicemail as well. iPhone 5s 64G. I'm not sure why this is happening. I tried hard reset, deleting and clear all deleted multiple times. I have even not revieved an important voicemail from a client somehow.

Should I try and reset the network settings or something?

resetting network settins should solve the issue for you. Remember that resetting network setting will erase any VPN, APN, and wifi passwords you may have saved.

Here's what worked for me. Prior to iOS 7, I would tap Deleted Message at the bottom of the list of voicemails, then tap Clear All in the upper right hand corner. With iOS 7 that button is greyed out. But if I tap one of the deleted messages which opens it for listening or deleting etc, then tap it again to close, the Delete All turns blue and functions properly. Weird!

For those in a situation where the voicemail is full (especially if it is a work situation), I found that calling my own Phone # (and thus entering voicemail the old fashioned way) allowed me to "7" the messages and delete the ones I wanted to trash. This cleared out the storage and elminated the "emergency". Of course this is still a pain.