@hugh1
If it's turned off, dial 1750 to turn it back on.
If you changed your account, you may have lost iData, if so you'll need to call O2 to add it back to your account.
Guide: All you need to know about O2 Voicemail 901
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.
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