Voicemail 901 is your answerphone. It answers any calls you miss and lets you know when you have new messages. It's available to all O2 customers by calling 901 and it’s ready to go on all new O2 phones. If ever it's switched off, you can turn it on by calling 1750 free from your mobile.

How do I set up my security PIN?

To keep your messages secure you need to set up a voicemail PIN. We’ll ask you to set one up the first time you call 901, or if your phone’s been reset.


How do I personalise my greeting?

Voicemail 901 comes with a standard greeting. To personalise your message, just:

  1. dial 901 from your O2 mobile
  2. press *
  3. choose option 3
  4. follow the prompts to personalise your message.

You can change your greeting as often as you like.


How do I check my messages?

While you're listening to a message you can press:

  • 0 to pause or continue
  • 4 to skip back five seconds
  • 6 to skip forward five seconds.

After you've listened to a message you can press:

  • 1 to replay it
  • 2 to save it
  • 3 to delete it
  • 5 to return the call
  • 7 to forward the message to another mailbox or leave a voicemail for the caller (Pay Monthly customers only)
  • 8 to hear who called you and when
  • 9 to reply by text (Pay Monthly customers only).

How do I manage my messages?

While you're listening to a message you can press:

  • 0 to pause or continue
  • 4 to skip back five seconds
  • 6 to skip forward five seconds.

After you've listened to a message you can press:

  • 1 to replay it
  • 2 to save it
  • 3 to delete it
  • 5 to return the call
  • 7 to forward the message to another mailbox or leave a voicemail for the caller (Pay Monthly customers only)
  • 8 to hear who called you and when
  • 9 to reply by text (Pay Monthly customers only).

How much does it cost to use voicemail?

Calls to 901 are included in your call tariff allowance. Outside your allowance, it costs the same to listen to a voicemail as it does to make a standard call to the UK.

There's no charge for receiving a message if you don't listen to it.


How do I use voicemail when I’m abroad?

Before you travel, you'll need to know your PIN. Calling 901, as usual, works in most countries.

If it doesn't, call 07860 980980 free from your mobile and enter your mobile number and mailbox PIN when prompted.

Depending on which country you're in, you'll either go straight to your messages or to your voicemail greeting.

If it's your greeting, press * and type in your PIN.

If you forget your PIN while abroad, text RESET to 802901.

Please note: Changing your reset PIN only works if you can access your voicemail using 901.


How do I change my PIN?

You can change your pin any time, just:

  • call 901
  • press *
  • Choose option 4
  • Follow the instructions for setting up a PIN.

When you set your PIN, try to choose a number that’s difficult to guess. So don’t go for repeat or consecutive numbers, or the year you were born.


What if I forget my PIN?

You can reset your PIN at any time, just text RESET to 802901. You'll be sent a temporary PIN, which you’ll need to change before you can listen to your messages.
You can change your PIN any time, just:

  • call 901
  • press *
  • choose option 4
  • follow the instructions for setting up a PIN.

When you set your PIN, try to choose a number that’s difficult to guess. So don’t go for repeat or consecutive numbers, or the year you were born.


How do I switch voicemail off?

If you don’t want Voicemail 901 on your phone, dial 1760 free from your mobile to switch it off.


What if I already have O2 Call Alert?

You can’t use Voicemail 901 if you have O2 Call Alert. If you want to swap between the two, call 1710 free from your mobile. Learn more about O2 Call Alert.


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