Frequently Asked Questions

The easiest way to top up abroad is with your credit or debit card, call the free credit card number 4444. For more information go to http://www.o2.co.uk/mobilestariffs/tariffs/topup/topupabroad

Some other ways you can top up abroad:

O2 Vouchers

Take O2 Top-Up vouchers with you. Just call O2 Top-Up line free by dialling 4444 from your mobile phone. More info on O2 Vouchers top-up

Web top-up

Top-Up online, right here on O2's website.More on O2 Web top-up

Almost everywhere in the work uses GSM networks and O2 has agreements with well over 424 of them in nearly 200 countries! Are you going somewhere special? Have a look at our guide to see what service you will be able to use - http://travelabroad.o2-uktech.com/coverage.php

In many places that you travel you’ll be able to call and text just like you do at home, but sometimes you might need to set up your call differently. Have a look at the place you are travelling to here and all will be explained! http://travelabroad.o2-uktech.com/coverage.php

It's always free to receive a text when you are overseas.

Just dial *#10# and we'll send your balance free of charge.

Find your Customer Service number including the calling cost

O2 Customer Services should be able to help, call them for free. Find your Customer Service number here

Call O2 Customer Services free. This will block the handset from being used and make sure you're not charged for any unsolicited phone use.

It all depends on whether you’re a Pay Monthly, Pay & Go or Business customer:

• Pay Monthly
• Pay & Go
• Business

Voicemail 901 is an easy and convenient way to access your messages while overseas. You simply retrieve your messages by dialling your Voicemail Retrieval Number (VRN) that you keep and re-use. Instructions on how to get this number are below. Message retrieval is charged at the rate for a call to the UK.

Follow these simple steps to set up Voicemail 901 abroad:

1. If it isn't already on, activate your Voicemail by calling 1750
2. Dial 1780 to receive your Voicemail Retrieval Number (VRN). If you forget to do this while in the UK you can call +447802 090 100
3. You'll hear your VRN read out to you and receive it in a text
4. Save it to your mobile
5. To pick up your messages, dial your VRN when overseas

In some countries you'll hear your own personal greeting. If so, key * then your Voicemail 901 four digit PIN code (the default PIN is 8705) and then press 2 to access you messages.

Callers can leave messages directly in your Voicemail 901 mailbox by dialling your VRN (callers will then only be charged for a UK call).

To divert all calls to Voicemail 901. Either use the menu on your mobile or key *21*901# and send. All your calls will then be answered by Voicemail 901, to cancel this service key ##21# send.

In many countries, you can access your Voicemail just as you do at home by dialing 901. If a you are in a country where you cannot make calls like at home you will not be able to use voicemail.

Voicemail 901 is an easy and convenient way to access your messages while you're overseas. You simply retrieve your messages by dialling your Voicemail Retrieval Number (VRN) that you keep and re-use. Instructions on how to get this number are below. Message retrieval is charged at the rate for a call to the UK.

Follow these simple steps to set up Voicemail 901 abroad:

1. If it isn't already on, activate your voicemail by calling 1750
2. Dial 1780 to receive your Voicemail Retrieval Number (VRN). If you forget to do this while in the UK you can call +447802 090 100
3. You'll hear your VRN read out to you and receive it in a text
4. Save it to your mobile
5. To pick up your messages, dial your VRN when you're overseas

In some countries you'll hear your own personal greeting. If so, key * then your Voicemail 901 four digit PIN code (the default PIN is 8705) and then press 2 to access you messages.

Callers can leave messages directly in your Voicemail 901 mailbox by dialling your VRN (they'll then only be charged for a UK call).

To divert all calls to Voicemail 901 either use your mobiles menu or key *21*901# and send. All your calls will then be answered by Voicemail 901, to cancel this service key ##21# send.

Throughout most of Europe, your service will work the same way as it does in the UK. You'll be able to use the same short codes without having to use the international dialling code to call back to the UK.

As soon as you land at your destination you'll receive a text message from O2 to let you know what services you can access.

If you're travelling further afield than Europe, you'll still have to call back to the UK using +44. And just to remind you, your short codes will be unavailable.

You get charged more for the cost of calls abroad because O2 have to pay for customers to use international networks.

This is the same when receiving a call. Within the UK, there's no cost to receive a call as O2 don't get charged for that minute. When you're abroad, O2 will get charged a cost per minute by the home country network. We pass a proportion of this cost to our customers.

If you're a Business or Pay Monthly customer, all calls made while you're abroad can be found on the 'roamed calls' page of your bill. They'll be illustrated in the standard format with the addition of the network that you called from also being shown in this section.

O2 will try to include your overseas call charges on your next available bill to allow you to keep track of your cost. However, sometimes O2 receive the details of calls made from another network late and this may cause issues with timely billing. This very rarely happens but is more common from those countries which have smaller networks.

If you're a Business or Pay Monthly customer, we have different World Zones to simplify overseas call charges – which means you don't have to remember call costs for each individual country. The World Zones do differ slightly depending on what type of contract you're on. More information on World Zones

Voicemail is generally set up to divert calls when you're on the phone, out of range, or when your handset is switched off. In the UK these diverts are free of charge, however when you're abroad, and an incoming call is not answered, the foreign network sets up another call to the UK. This is the additional call. We're working to solve this issue, however if you're concerned about this, we would strongly recommend setting up 'divert all' for calls to Voicemail and they'll not be charged. Details on how to do this can be found in the Voicemail 901 section of this page.

You can use WAP and GPRS on a number of networks across the world. Usage is charged at £3 per Mb in the EU and £6 per Mb everywhere else (all inc VAT) for all customers. WAP and GPRS networks

To send picture messages, you'll need to be on a foreign network that supports GPRS. We have 170 network agreements in 90 countries that allow picture messaging to be used. GPRS networks supporting picture messaging