I am currently in Thailand but cannot receive my voicemail as when I enter 901 i always get an engaged signal. Any ideas?
@miketolstoy See this guide: All you need to know about O2 Voicemail 901. - O2 Community
I DO NOT WORK FOR O2
Hey there @miketolstoy hope you got all the info you needed from the guide posted above. Let us know if you have any other questions anytime though!