Frequently Asked Questions

What is roaming?
When you take your mobile phone abroad, your phone "roams" onto overseas mobile networks. This enables you to continue using your mobile almost as you would in the UK, but with your existing operator there can be significant extra costs for calls, voicemail and all your customer services.
If you use a low cost travel SIM card from CallBlue when you move between countries, your mobile phone reception will move seamlessly with you, picking up a new network as soon as you arrive in a new destination, enabling you to make cheap calls the moment you step off the plane.

Where can I use the CallBlue low cost international travel SIM to make cheap calls abroad?
You can use the CallBlue travel SIM in over 150 countries - all the major tourist and business destinations.

How do I use my CallBlue GSM without changing my existing mobile number?

• Give friends, family, and colleagues your new number to use whilst you are abroad, AND/OR
• Leave a voicemail on your existing mobile phone number giving callers your World SIM number to contact you on, AND/OR
• Simply forward your calls from your existing mobile to your CallBlue low cost travel SIM number (please note that call diversion does normally attract a small service charge from your existing service provider. You should check this with them. However it should still work out cheaper than receiving a call on your normal mobile number while abroad).

How do I make a call ?
CallBlue low cost travel SIM works just like a normal SIM card with one small difference when making a call. CallBlue GSM uses call-back technology to ensure you get the lowest rates. With CallBlue GSM, you dial your number as normal always using the full country code. However, instead of getting directly through to the person you are calling, there will be a brief 'call back' between dialling the number and being connected. A few seconds after making your call, your mobile phone will ring. Answer the call, and your call will be connected to the person you are calling.
Here’s how easy it is to make cheap calls from abroad on your mobile phone:

1. Dial the number including the full international dialling code ie. +447624139363
2. You will see a "Please Wait" message. The phone will then disconnect. Please note that different phones will display varied messages. Some may even say “call failed”, “call rejected”, or “sending a request”. These are all a normal feature.
3. Please wait. Within a few seconds you will receive a ‘callback' and your phone will ring.
4. Answer the call and you will hear a message saying your call is being connected.
5. You will be connected to the person you are calling… and will pay a lot less for the call than if you had used your UK network.

How do I receive a free (or low cost) mobile phone call abroad?
Receiving a call on CallBlue low cost travel SIM is exactly the same as receiving a call on a normal SIM or mobile network. But the difference is that in 55 countries abroad you wil not be charged for answering a call on your mobile phone (and in other countries it will cost a lot less than your UK network charges).  See the list of countries where it is free to answer your mobile calls here…

I get an error message when I make a call
Don’t Panic! This is a normal feature of a CallBlue low cost travel SIM card. Beacsue CallBlue GSM uses call-back technology to ensure you get the lowest rates. On your international mobile calls, when you dial your number, instead of getting directly through to the person you are calling, there will be a brief 'call back' between dialling the number and being connected. During the brief period, your phone will display a "Please Wait" message. Some mobile phones will display varied messages. Some may even say "call failed", "call rejected", or "sending a request". Wait a few seconds and you will get a callback.

I do not receive a call back when I make a call on my mobile when abroad
If you do not receive a call back, this may mean that your handset is not compatible for using the normal dialling method. However, you can still use it to make cheap calls using CallBlue GSM. Instead of dialling your number as normal, you simply have to save or enter the number prefixed with *125*1*countrycode&number #.
Receiving calls anywhere in the world and sending text messages remains exactly the same.

How much does it cost to call a CallBlue low cost travel SIM phone number?
Your CallBlue GSM number is a UK mobile number – it will start with 07.  This means in most cases anyone phoning you will pay the rate the usually pay for an 07 call – and this could be free if its included in their won mobile phone deal (i.e. free minutes to UK mobile numbers).
From most fixed lines it ought to be charged as a call to a mobile phone or less.
Mobile networks may levy different charges. Please check with service providers directly about their charges to 07 numbers if you are unsure.

How do I check my credit balance and view my call history?
You can always check the credit balance left on your CallBlue low cost global SIM by using your mobile phone and dialling 187.
To view your call history, simply log onto your account at www.CallBlue GSM.com from anywhere in the world. Your call history is real-time hence no need to wait hours or days to view your call details and costs.

How do I top up my CallBlue low cost global SIM card?
Click here to top up your CallBlue GSM from anywhere in the world at any time.

How long does my CallBlue GSM last?
Any unused credit to make cheap international calls on your mobile phone will not expire as long as your SIM is active. This includes any free starter credit that comes with your CallBlue GSM lost cost global SIM card.
The actual CallBlue GSM SIM card will be active as long as you want it to. When you buy your CallBlue GSM, the SIM card is initially activated for a year. To extend the validity of your SIM card beyond a year, there is a £12.50 annual network fee. You will receive an automatic reminder near the end of the year.

How do I quickly transfer all my phone numbers from my existing mobile phone to the low cost travel CallBlue SIM?
Use a SIM Bank to transfer your contacts from your current SIM to a CallBlue GSM at the touch of a button.

How do I use the cheap call forwarding facility to call on my mobile phone anywhere in the world without incurring any CallBlue charges?
To use CallBlue’s cheap call forwarding facility to call abroad, you need to forward your CallBlue SIM number to the number abroad that you wish to call. Then simply call your CallBlue SIM number and you will be put through to the number abroad that you wish to call. Costs for calling your own CallBlue GSM number will be dependant on how you are dialing. Your CallBlue GSM number is a UK mobile number. From most fixed lines it ought to be charged as a call to a mobile phone or less. Mobile networks may levy different charges. Please check with your service provider about their charges.
The approximate costs of calling a CallBlue SIM number using some popular providers range as follows; BT landline: 12.5p peak, 4p weekend; UK mobile cross network minutes; Free (on some mobile providers – please check with your provider).

Phone Compatibility

Can I use CallBlue GSM in any phone?
CallBlue GSM is compatible with the majority of phones bought in the last four years, however your phone has to be unlocked to use CallBlue low cost travel SIM.

Will CallBlue GSM work with my phone?
CallBlue GSM is compatible with most mobile phones and will work if they are unlocked.

Is my mobile phone unlocked?
To find out whether your phone is unlocked, insert a SIM card from a different network into your phone. If it operates normally, it is unlocked. If not, you can ask your operator for an 'unlock code' which it is obliged to give you, though conditions and charges may apply.
Alternatively you can unlock it yourself by taking your phone to an independent phone shop or by trying one of the independent unlocking web sites.

Purchasing & Delivery

How much does a CallBlue travel SIM card cost?
A CallBlue low cost international travel SIM card costs £29.99 and comes with £5 of call credit. This price also includes VAT and delivery.

BUY yours now.

You can also buy call credit ‘top ups’ here for £10, £25 and £50…

How much are the delivery charges for a CallBlue GSM SIM card?
All delivery charges within the UK are included in the price, as is VAT.

Features

Does the CallBlue low cost travel SIM have a voicemail service?
CallBlue SIMs come with a full voicemail service. To activate your Voicemail dial 122, to deactivate dial 123 and to retrieve Voicemail simply dial 121.

Can I use conference calling with CallBlue low cost travel SIM cards?
Yes you can. You can initiate a conference call using either a web-browser or a mobile phone equipped with text messaging (SMS).
Here is how to set up a conference call online using your cheap calls abroad CallBlue SIM:

• Log on to your CallBlue GSM online management account
• Click on XXXX
• Enter the phone number for everyone you wish to conference in, or do so by selecting contacts from your personal phone directory. Highlight those individuals you wish to call / conference call. Then click the “dial” icon

Setting up a conference call through your phone

• To add a party to call, simply dial # * 3.
• You will hear a voice prompt.
• Dial the number you want with "#" at the end. Within moments, that person will be added to your conference call.
• Repeat this sequence to add additional parties to the conference.

What are other quick access codes I can use with the CallBlue low cost travel SIM?

• 102 +(Number) – Forwarding ON
• 103 Forwarding Off
• 121 Voicemail Retrieval
• 122 Voicemail ON
• 123 Voicemail Off
• 125 Check status of features
• 154 Customer Service
• 187 Account Balance