Recently changed from 3 to iD Mobile, porting my number. I am using an iPhone 12. I have set up voicemail and it is very erratic.
I am missing calls, which go straight to voicemail. Just now I got the text advising receipt of a voicemail, but cannot connect when dialling the voicemail number so cannot get to the message. However I can make other calls. Voicemail number auto sets on +447782333123.
I have tried a soft re-set on the phone, toggling Airplane mode, toggling WI-FI calling, taking out and reinserting the SIM card, but no luck.
Help please!