User guide for Mobal’s World Phone and World SIM

  1. About GSM and the Mobal GSM SIM card
  2. How to make calls
  3. Call charges and invoicing
  4. SMS Text Message Service
  5. Useful information
  6. The voicemail service

1. About GSM and the Mobal GSM SIM card

The worldwide GSM network

The GSM network (Global System for Mobile communications) is the most widespread mobile network in the world. In order to use the GSM network you require an unlocked GSM handset (which is compatible with the local cellular frequency where you will be using it) and a SIM card.

The Mobal GSM SIM card

GSM phones require a small electronic chip, called a SIM card, to be inserted into a slot in the handset. This SIM card is the “heart” of your phone – it contains your mobile phone number, your phone book, and all of your registration information. The Mobal GSM SIM card provides you with access to over 320 GSM networks in over 160 countries.

Your GSM handset

All current GSM handsets should be compatible with the Mobal GSM SIM card. However, you should check with the supplier of your handset that there are no SIM card restriction locks in place. Also, you must check that your GSM handset is of the correct frequency for each of the countries that you intend to visit. Most of the world’s GSM networks operate at 900MHz and 1800MHz. However, in order to use the networks in the USA and Canada you will need a handset that is also capable of operating at the 1900MHz frequency. Please refer to the Mobal GSM Country List/Call Rates for details.

How to insert your Mobal GSM SIM card into your GSM handset

Carefully remove the small SIM “chip” from the plastic card. The method of fitting the SIM card into your GSM handset varies with each manufacturer. It is usually a simple process of inserting the card into a slot on the back of the handset, often under the battery. Please refer to your handset’s user guide for details.

How to Access Voicemail

To access your Voicemail messages please dial  901 from your Mobal  phone.

17 thoughts on “User guide for Mobal’s World Phone and World SIM

  1. Jeff

    My mobal sim won’t connect in Nigeria and I have no phone to call the help line.

    1. Emma

      Thank you for your comments and i’m sorry to hear you are having problems using your Mobal SIM Card in Nigeria – unfortunately we are unable to provide support via the Blog but would be happy to help if you could in on e-mail

  2. M Briselli

    Hi Emma,
    First let me say that I really appreciate the service that Mobal provides. But like many of the e-mails posted, it is apparent that
    using the system with its many permutations (calling from a variety of countries to other countries and well
    as different areas within a single country raises a number of questions,
    particularly the relationship between where you are physically and where the phone appears to be.
    I would like to suggest that Mobal
    compile an online reference file with the answers to many of these questions and make it accessible to your clients.
    This would markedly decrease the number of e-mails to you and make the client experience much better. Telling people
    with questions similar to those that I have that we all need to e-mail or call for an answer only means that you will be inundated with the same or similar questions over and over again. Even posting the answers to the “top 10 or 20” questions
    on your website would go a long way to improving the user experience. Just a thought.

    1. Emma

      Hello Mr. Briselli,

      Thank you very much for your feedback – I really appreciate you taking the time to reply. We have recently launched our online support pages here:
      These pages will continue to develop and will hopefully become a really useful resource for customers to find everything they need to know about using their Mobal Phone.
      In here, you can download user guides, get information on calling & texting, and get lots of tips and tricks on how to best use your SIM/phone.
      We understand that when customers are using their phones, they need access to user information right away – and don’t want to have to call – or wait for a response to an email. We hope that these support pages will prove a really useful resource for customers to be able to help themselves to all of the information they need.
      Thank you again for your feedback – we hope you may find the support pages really useful. Please do continue to let us know if there is anything you feel would improve your user experience further.

      Many thanks,


  3. Harry Wentworth

    I will be traveling to Mexico next week, first timer user of my mobal phone. My sister lives in San Miguel de Allende north of Mex City.
    she uses a cell phone registered in California. Calling her from my home in Hawaii we dial 1 area code and #. What pre fix will I use to call her from Mex City with my Mobal phone? Thank you

    1. Emma

      Thank you for your comments – please see our handy guide on how to dial from your Mobal Phone can download this guide for future reference. To call a US registered phone you would dial + 1 followed by the number without the 0. Many thanks.

  4. Brenda

    When someone calls and leaves a voicemail is that considered a call? Will I be charged for that? Also can I disable voicemail? Thanks

    1. Emma


      There is no charge for message deposits. Listening to messages (ie. calling 901) is charged at the rate of calling to other Mobal Worldphones. You are able to disable your voicemail. Could you tell me when you purchased your world phone? Alternatively, you can find the answer to your question on our support centre –

      Kind regards
      Mobal Support

  5. Sue

    Does your phone system work from India to the US? If so what are the charges? How do I find this information on your website?

    1. Jared

      Hi Sue, Yes the Mobal World Phone will work from India to the US.

      Calls are priced at $3.95/minute from India to the US.

      You can find out more here

  6. michael

    Please my world sim is not receiving text Massage for the pass one year, please what will i do to get it solve.

    1. Jared

      Hi Michael,

      Could you please contact the support team on +1 212 785 5800 or and let them know your account number or World SIM phone number and they should be able to help sort this issue out.



  7. joseph iosca

    How can I find intruction video on the web for settiing up my blu magic phone

  8. joseph iosca

    Please e mail me how to find user videos on the web my blu magic instruction guide is extremly vague on how to install sim card,sd chip etc I just received the phone thank you

  9. james Gerspacher

    my “Mobal World SIM User Guide is ilegible. the blue print is faeded. need legible copy.

    1. Tren

      James, give the support team a call on +1 212 785 5800. They will be able to issue you with a new copy.

  10. Satishwagh

    Advice how this sim works . When u call number do u get dialling number immediately or it is like a call goes to to a particular country and comes back . Presently I use true phone is it similar to that . Mr wagh

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