FREQUENTLY ASKED QUESTIONS

We are here to help you get answers to your questions about OneSimCard phones and services.

Back to Main Support Page

71. How To Use Questions
    • How do I prevent the service from expiring?

      The OneSimCard phone number has no expiration, provided you made at least 1 call or sent an SMS once every 12 months.

      However, the funds on the SIM expire 10 months after your last recharge. The minimum recharge amount is $25. You can keep the balance from expiring by simply recharging at least once every 10 months. If you let your balance expire, then all you need to do to get the service up and running again is to log in and add funds to your SIM card. Automatic recharge will be canceled if you let your funds expire.

      NOTE: For Physical 3-in-1 DataMax & DataMax eSIM SIM cards, if the SIM card has no balance, the SIM will expire and be removed from the account after 7 days, unless there is a data package currently active on the SIM (not a future activation). If there is no balance on the SIM and the active data package expires, the SIM will expire 7 days following the expiration of the active data package.

       

      An expired SIM can be restored for a $10.00 restoration fee plus a recharge of at least $25.00.

       

72. Ordering Questions
    • Will my order require a signature upon delivery?

      Yes, please assume that your order will require a signature if it contains a cell phone.

73. How To Use Questions
    • How can I dial '+' on my phone when making call?

      Note: You can always dial 00 instead of + when making outgoing calls. For example, to reach OneSimCard customer service in the USA you can just dial 001 617 3138888.

      You should consult the phone manual for this info. Different manufacturers have specific ways to access the '+' key, so make sure you know yours.

      Here are few known ways:

      • Bosch: Press and hold the star (*) key until the "+" sign appears.
      • Motorola: Press and hold the zero key until the "+" sign appears.
      • Nokia: Press the star (*) key twice in rapid succession.
      • Pocket PC: Pull up the keyboard, hit the <123> button in the top left corner, and select "+" from the resulting screen.
      • Samsung: Press and hold the zero key until the "+" sign appears.
      • Sony Ericsson: Press and hold the zero key until the "+" sign appears.
      • Treo 270: Press the blue button and then the "G" key.

       

74. Troubleshooting Questions
    • When I dial following your instructions it does not work. What's wrong?

      This answer applies to SIM cards purchased before January 1, 2017.

      Some phones, such as Samsung, some Motorola, Android and Apple iPhones, require special dialing instructions or simple OneSimCard settings menu changes in order to make calls.

      It is possible to make almost any phone entirely compatible, so you can call directly without using the OneSimCard menu or *146* by following these simple programming instructions below.

      How to activate compatibility mode:

        1. Locate OneSimCard Menu.

       On iPhones it is called SIM Applications menu and is located under Settings- Phone menu

               On Androids it is called SIM Toolkit app or OneSimCard app and it looks like one of the apps.

         

      1. Open "OneSimCard" menu ( SIM Applications, SIM Toolkit, STK)
      2. Select "Settings
        Newer SIM Cards: Select Service Code option and follow instructions below:
        Older SIM Cards: After selecting Settings:
        1. Agree with message by pressing "Yes"
        2. Dial digits "1101" and select "OK" (Screen will show "CC OptionX: ON" message)

          Bear in mind that if you have powered your telephone down, and have removed and reinstalled the battery, you will need to follow the programming steps outlined above, again.

          If for any reason after entering compatibility code, you still do not get a ringback or you get the ringback the first time you make a call, but second time it would not work, please enter code 802 into the Service Code window instead of 1101 as provided above.

           

          iPhone users can download OneSimCard Assist App from iTunes that will takes care of the iphones compatibility issues, except for removing the ringback.


          For example, calling to USA: Dial *146*0016175551212# and press the TALK (or SEND) button

          * is a star character located on the keypad
          • To check your balance dial  *146*099# and press the TALK (or SEND) button
          • To add funds dial *146*098XXXX*ZZ# and press the TALK (or SEND) button,
            where XXXX - 4 last digit of your credit card on file, ZZ - Recharge amount
          • You need to press * on your phone in the above dialing sequences
          • Activation of voice mail *146*091# and press the TALK (or SEND) button
          • Deactivation of voice mail *146*090# and press the TALK (or SEND) button
          • Check number of messages in Voice Mail *146*094# and press the TALK (or SEND) button
          • To listen to voice mail *146*095# and press the TALK (or SEND) button

          The sequence *146* and # at the end can be used from any phone. However, most phones do not require it.

          We strongly recommend you to watch very short video tutorials that will help you to understand how to make calls, SMS and data on your OneSimCard Phone.


          These videos are available in the Help Menu of your OneSimCard Portal. You need to log in to your OneSimCard account first and then proceed to the Help Menu to be able to access these videos.
          Again, this troubleshooting advice might be needed only for older SIM cards.

           

           

      75. Rates and Cost Questions
        • How does OneSimCard compare to the international roaming from the largest US carriers?

          OneSimCard can help you save a lot of money on international roaming abroad over large domestic carriers. Check out these rate tables to compare international roaming offerings from AT&T, Verizon,  and T-Mobile. 

           

           

      76. Ordering Questions
        • Can I upgrade my Standard SIM to a Universal, DataMax or DataMax eSIM SIM or my regular size SIM to a micro or nano SIM?

          Yes. If you would like to upgrade your Standard, Plus, Europe & More, Expedition version SIM card to a Universal, DataMax, or DataMax eSIM SIM card, or upgrade a regular size SIM card to a micro-SIM card (for example, to use in an iPhones) then place your order online by selecting the product option on our Mobile Accessories page here. In the shopping cart you will be able to select your upgrade.

           

      77. Ordering Questions
        • What is 1SIM FUND?

          The OneSimCard Money Fund allows you to pay for OneSimCard services by means other than credit cards and also by Visa and Master Cards enrolled in the credit card security programs:

           

          Once you deposit money into your OneSimCard Money Fund through one of above methods, you can use this fund to recharge your SIM(s), order a second number, or make any other payment for orders placed at OneSimCard.com.

          OneSimCard Money Fund additions are non-refundable. However, the money you put into the fund does not expire. There are no fees applied to the fund maintenance either.

          Example 1

          You are in Kenya and can't pay using a credit card. You would like to purchase a OneSimCard SIM for $39.95, and also be able to add airtime (recharge) later. You will also need to pay for shipping.

          First step - you need to add funds to your OneSimCard Money Fund. It's up to you what amount you would like to send us, but it should be large enough to cover your purchases. Let's say you posted $200.00 to your OneSimCard Money Fund.

          Once the money is received, we will send you a confirmation email. Then you can log in to your OneSimCard.com account and place your order. It will be instantly processed and the money will be deducted from your OneSimCard Money Fund account.

          Example 2

          You have 3 SIM cards and 3 personal second numbers.

          You want to set up auto-recharge for SIM1 and SIM2 in $25 increments and the third one in $50 increments. You also want to extend (recharge) your Second Numbers every month.

          Let's say you put $500 into your OneSimCard Money Fund account. Now you can set up $25 auto-recharges on your 2 SIMs and $50 auto-recharge for your 3rd SIM, as well as and automatic extension of your second number.

          This option allows many users around the word to take advantage of OneSimCard.com services without using a credit card.

          Example 3

          You use your credit card account to add money to the 1SIMCard Money Fund. The transaction from a credit cardl is instant. Funds will be instantly added to your 1SIM Card Money Fund, and then you can use the Money Fund to make any purchase at OneSimCard.com.

           

      78. Rates and Cost Questions
        • Will I get a bill for using OneSimCard service?

          No. DataMax, DataMax eSIM, OneSimCard Universal, Expedition and eSIM World service is a prepaid service. You will not be able to spend more than you put on the SIM, except when you set the automatic recharge of the SIM. There are three simple ways to add funds to the balance of the SIM: from on-line, from the mobile phone and by setting up an automatic recharge. This pertains to both - purchased SIM cards.

          For funding the 1SIM VoIP App, there are three simple ways to add funds to the balance of the account: from on-line, from the mobile phone and by setting up an automatic recharge.

      79. Ordering Questions
        • How long will it take for my OneSimCard to be delivered?

          Your order will be shipped the next business day.

          We offer several delivery options for shipments to the USA:

          • USPS First Class Mail Package

          Your order should arrive in 1-5 business days,Tracking is available for US deliveries. It is not available for international deliveries.

          • USPS Priority mail
            Your order should arrive within 2-3 business days, but it is not guaranteed. You will be provided tracking details with this method
          • UPS UPS Next Day Early.
            Delivery guaranteed by 10 AM or 3 PM.
          • UPS 2nd Day Air
            Delivery is guaranteed in 2 business days.
          • UPS Next Day
            Next day delivery to most locations in the USA.
          • UPS Next Day Saver

          Next day delivery to most locations in the USA

          • UPS Ground
            Delivery guaranteed in 1-6 business days depending on the destination from Boston, where we ship from.
          • USPS Express Mail Large Envelope or Flat

          1-2 business days

          For orders shipped outside of USA:

          • International Air Mail - usually takes 5 to 30 business days, no tracking
          • US Postal Service International Priority - delivery time depends on the country
          • UPS International - 2-6 business days - depends on the country and location in the country. This is the most reliable shipping option.

          You will get more detailed information about the delivery to your destination when you start placing your order.

          Any eSIM order does not require any shipping so this is a great way to avoid shipping costs and time. Just download and go!

      80. How To Use Questions
        • How do I make a call within the country I am currently located?

          You should make any call the same way as if you were making an international call.

          For example, you are in France and need to call Paris:
          You should dial 00331XXXXXXXX. Please note that you should not dial 01 for Paris, but rather just 1 after country code 33, because Paris' code is 1.

          Dialing 0 in front of 1 is required when making a regular long distance call within France to Paris. However, when making an international call or OneSimCard call, 0 is omitted.

          For example, if you are located in Italy and need to call Rome:
          You should dial 003906XXXXXXXX, as Rome's code is 06.

          Get more information about international dialing codes.
           
          If you are unsure about how to properly dial an international number, you can Click here for more detailed country by country dialing instructions.

      <<   1   2   3   4   5   6   7   8   9   10   11   12   >>  

      © 2006-2025 Belmont Telecom Inc., DBA OneSimCard.com. All rights reserved