My voicemail won't connect

[Greekofile]

My voicemail has stopped connecting over the past week, for no obvious reason. I get constant messages on my phone and watch saying I have a voicemail but when I try to phone voicemail I am getting a message saying Call Failed : 'Error performing request. Unknown Error' 

Any suggestions?

Thanks

[Chris_B]

@Greekofile   Try texting VM OFF to 150 then turn the device off/on then text VM ON to 150 and test it. 

[Greekofile]

Thanks, I tried that but it hasn't made any difference.

[Kirigaya_Kazuto]

Are you using Visual Voicemail on your iphone? Test IPHONE VISUAL to 150

[bristolian]

Hi @Greekofile 

Does the same error occur whether you are using speed-dial 1 and/or manually dialling 222?

[Greekofile]

Interesting! I had been just following the links but when I dialled 222 it worked. It will be interesting to see if this solves the problem. It does seem to have stopped the continual messages.

Thanks