Prepaid customers will receive a charge for any voicemail’s deposited in their voicemail box while roaming, even if their device is switched off. This is charged at the standard per min rate for receiving calls while roaming. Alternatively, you can turn off voicemail while you’re overseas by calling us.
This means that I'll be paying per minute rate when someone leaves a message which is fine.
Would it be correct to assume that the charge starts when the greeting message is being played? EG: I will pay for receiving a message even if the caller doesn't leave a message (hangs up during the greeting before the beep)?