Phantom voicemail alert

[Umiamz]

Almost every time I power on my iPhone X I get a notification from the Phone app saying that there's a new voicemail. There's no badge on the Phone icon, just the alert which comes up as soon as I enter the SIM PIN.

If I tap on the alert it takes me to the Visual Voicemail section of the Phone app but there are no new voicemails.

I've tried a hard reset and also leaving a voicemail then deleting it. Still get the phantom alert, though.

Anybody else seen this?

[MI5]

Call yourself from another phone and leave a voicemail.
Then call voicemail from your iPhone, listen to and delete your message, which should also clear the phantom one.

[Anonymous]

I used to get the same on my old iPhone 6s. I had read something ages ago about it something to do with when 3G is on because I noticed that if I was on WiFi with mobile data turned off then the notification would disappear until I turned data back on

[MI5]

Probably because VVM requires a mobile data signal to work.

[Umiamz]

Thanks, but, like I said, I’ve tried leaving a voicemail and then listening to it to no effect.

I tried calling 1760 to turn off VVM but this fails with a message saying I should contact customer support.

This phantom alert only happens when I power off/on the iPhone and it clears as soon as I tap on the alert banner - it’s fine the rest of the time, so it’s more of a minor irritation than a real problem.

[MI5]

You could call customer service and ask them to reset your voice mailbox
http://www.o2.co.uk/contactus
Some more VM help here for reference https://community.o2.co.uk/t5/Other-Products-Services/All-you-need-to-know-about-O2-Voicemail-901/m-...

[jonsie]

A possible answer would be to try replacing the sim card. If you have a spare phone, put your present sim card in it and see if the phantom alert happens on that phone too.

Have a look at this older thread :

https://community.o2.co.uk/t5/Other-Devices/Phantom-voicemail-notification/td-p/627322

[Umiamz · Accepted solution]

Thanks for the suggestion of trying a different phone. I stuck the SIM in my Pixel 2 XL and immediately got the voicemail alert when I powered it on. I thought it might be a good idea to try leaving a voicemail and deleting it again, what with the SIM now being in a phone without VVM. This time, it appears to have worked (at least so far).

I've put the SIM back in my iPhone and power-cycled it a few times and still haven't got the voicemail alert yet, so fingers crossed... 

[MI5]

Hope it stays that way.

[jonsie]

Fingers firmly crossed for you