Strange Voicemail Notifications

[Lowufo]

I have received a couple voicemail notifications in the last few days on my iPhone 6. I will receive a notification of a new voicemail but no recent calls showing in my history and the phone has not rung. A red notification shows under the voicemail icon but when I call my voicemail there is no message there. First time it happened it was a few days after not answering a number I didn’t recognize. At the time I thought that’s strange it took so long for the message to come in but in fact there is no message. Anyone else getting these strange random voicemail alerts?

[Lowufo]

It happened again today. Phone did not ring or show anything in recent history but there was an alert of a new voicemail. Call into the voicemail and it says you have one new message but nothing is there? Must be a system glitch. I have been with Public Mobile for a year with four lines and only one of the four has been doing this in the last few days.

[computergeek541]

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@LurganIeUk wrote:

If a number is blocked, your phone will not ring, but will accept voice mail. Do any numbers that you don’t recognize show in your recents. If yes click the i in the circle and scroll down and block the number if it has not been already. 

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A number being blocked can certainly cause calls to go directly to voicemail. However, the number being blocked can't make the phone inform the customer of a new message when there are none.

@LurganIeUk 

Is it a blank/hangup message (or one where the system tell you there is a message but you hear nothing, or does it actually say that you have no new messages?

[Lowufo]

That’s the strange part nothing in recent calls and no numbers blocked. Last time it happened the voicemail notification sound just went off and showed a message but in fact no message in voicemail and zero recent calls. Not really sure what’s up with the random notifications. Phone has current iOS and has been restarted. I was just curious if anyone else was getting the random notifications. 

[LurganIeUk]

If a number is blocked, your phone will not ring, but will accept voice mail. Do any numbers that you don’t recognize show in your recents. If yes click the i in the circle and scroll down and block the number if it has not been already.