Incoming calls - no caller ID

[Roman]

Since Thursday all of my incoming calls are coming through as ‘No Caller ID’. This includes all of my saved contacts. I’ve checked all of my phone settings, completed a network reset, installed the latest iOS,

called O2 twice (they just googled it and offered no solutions!), been to a store and done a SIM swap. When another SIM,

with another account and number, is placed into my phone it works fine! It seems to be baffling everyone. Anyone have any ideas??….

[TheRealFB]

I've just had a phone call with the caller ID displayed! 😀 So maybe a fix after 14 working days.
Just in time, as I was going to look at swapping at the weekend.
Hopefully future calls will be OK too.

[pgn]

Good news, @TheRealFB - out of interest, if you can log in to the MyO2 App on your phone (not web version!) can you see a bolt-on called "CLI Presentation Facility", perchance? See the end of the picture below:

(Image courtesy of @jonsie)

[TheRealFB]

I spoke too soon. CLI worked on my SIM in another phone though, so it is an O2, Motorola interaction.
I have asked for the CLI presentation bolt on.
I don't have the CLI Presentation bolt on. Just 5G Access, volto2 travel Inclusive Zone and 10GB Volt Double Data Boost