Cortana really comes into her own when connected to my car. As well as the usual voice activated dialing you can also have text messages read out and reply to them with voice too.
Additionally I like the integration with the phone so it learns the things you search for and interest you and you can add reminders to contacts and calendar events too.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion.
This is not Customer Service so we are unable to help with account specific issues.Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)