Can't change voicemail number on Galaxy S7 edge

[walcot]

I want to change the number my Galaxy S7 edge diverts to on no answer after 30 seconds. If I type in **61*phonenumber*11*30#Send I get "Connection problem or invalid MMI code". I get the same error message if I try to check the status usung *#61#Send.

I've tried rebooting the phone but that doesn't help. I've tried using other MMI codes and I get the same message.

Anybody any ideas?

[MI5]

[MercedesS]

Hello guys,

Thanks a lot for all the help, you are all 

Some users have reported the same issue so, we’ll look into the matter right now and post any updates as we get them. 

[jonsie]

We came to the conclusion it is a system error when someone else had the same problem last night. 

[MercedesS · Accepted solution]

Hello @walcot

The technical team have been trying to find a general motive or cause for the issue, but it looks like the problem is complex, so please, if you are having issues with setting up or amending call diverts you need to call customer services so they can complete fault diagnostics and raise a case for it to be investigated, if needed. This isn’t something we can really do via the Community I’m afraid.

Talk to a guru and they should be able to help you! 

And thanks, thanks a lot @jonsie, @MI5 and @madasaf1sh for all the help!!!! 

[Alboyuk]

Still having this problem after 6 years O2 should admit they cant solve such a simple problem