All incoming calls going to voicemail

[Amitav]

After doing a Reset Network Settings, all incoming calls are going straight to Voicemail. I have turned Voicemail off using 1760. It doesnt make any difference whether I dial 1750 to turn it on either. I can make outgoing calls and use data & WIFI. Signal level is good. Have switched off and restarted. 

Device - IPhone11. Any help would be appreciated.

Thanks 

[MI5]

@Amitav 

Try dialling ##002#. This is the short code to cancel all diverts, including Voicemail 901. You then need to dial 1750 to switch voice mail back on.

[MI5]

You can also dial
**61*901*11*30# then press 'call' which will extend the time before voicemail kicks in to 30 seconds.

[Amitav]

Hi MI5,

Thanks for your suggestion for resetting the diverts. That has got it working again. I had tried it once before  ( before I restarted my phone) and it didn't make any difference. So, second time lucky.

[Amitav]

Yes, I do use this command quite a lot - I usually set it to 25 seconds, as the default O2 setting is about 10 seconds or so which is way too short. Thanks for your tip.

[MI5]

You're welcome mate