on 06-01-2021 10:31
on 06-01-2021 10:34
on 06-01-2021 10:42
on 06-01-2021 10:42
901 does usually work from France.
Are you getting an error message at all?
See other ways to access vm here Guide: All you need to know about O2 Voicemail 901
on 06-01-2021 11:42