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1. Ordering Questions
    • Does OneSimCard offer any Hearing Aid Compatible (HAC) phones?

      Yes. You can find a list of available HAC phones here.
2. eSIM
    • Do you offer an eSIM option for iPhones, Androids or Tablets?

      Yes. The OneSimCard eSIM option is available for use with iOS and Android phones, smart watches and even Windows tablets.

      eSIM is not a physical SIM, but rather a program that can be downloaded to eSIM compatible phones and device.

      The list of supported devices includes:

      • iOS:
        iPhone 12, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE 2 (2020), iPad Air/Pro (3rd Gen), iPad Mini 5.

      • Android:
        Google Pixel 3a, 4, 4XL, 5; Samsung Galaxy Fold, Samsung Galaxy S20, S20+, S20 Ultra; Samsung Galaxy Z Flip; Samsung Watch S4; Huawei Watch 2 Pro; Huawei P40, P40 Pro.

      • Windows 10:
        Acer Swift 7, ASUS NovaGo, HP Envy x2, Lenovo IdeaPad Miix 630, Lenovo Yoga 630, Microsoft Surface Pro X/Go 2/Pro with LTE Advanced.

      Learn more about eSIM compatibility on the eSIM page.

       Note: iPhone XS and XR manufactured for the Chinese Market have 2 physical SIM card slots and are not eSIM capable. Pixel 3a can't use eSIM if the phone was purchased in Japan, or if bought with Verizon or Charter service.
3. Troubleshooting Questions
    • I have a Samsung phone. When I dial following your instructions it does not work. What's wrong?

      Some phones such as Samsung and some other brands require dialing a specific prefix 146 in front of the dialed string when used with a OneSimCard.

      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* can be used from any phone. However, most phones do not require it.

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

      How to activate compatibility mode:

        1. Locate and Open "OneSimCard" Menu. ( It could  be displayed as STK Menu)

              2. Select "Settings"

        Newer SIM Cards: Select "Compatibility" and make sure "On" is selected
        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.
          d when used with a OneSimCard.

      4. Troubleshooting Questions
        • Will¬†a OneSimCard international SIM card work with my mobile phone?

          OneSimCard will work with almost any unlocked GSM tri-band or quad-band cell phone. A partial list of compatible cell phones that we have tested can be viewed here.

          If you need to unlock the phone, we suggest contacting your carrier or phone manufacturer for unlocking information or services.

          If your phone is not a quad-band phone, please make sure that the bands of your phone are those required in the country of your travel. You can look it up here.

          If you are still unsure whether your cell phone is compatible, contact support or purchase an international cell phone and SIM card bundle from us, which all come preloaded with our international SIM card, $10 balance  and OneSimCard Apps Installed.

      5. Ordering Questions
        • Is there a nano-SIM version available for my iPhones or other phones?

          Yes! Just select "nano size" or buy a 3-in-1 SIM that contains all 3 sim sizes during checkout.

      6. OneSim VoIP
        • What is the cost of calling between two OneSim VoIP phones?

          Calls between two OneSim VoIP phones are absolutely free.
      7. Ordering Questions
        • Do international cell phones purchased from OneSimCard come with a warranty?

          Unless otherwise noted, all phones sold on OneSimCard.com come with our standard 90-day replacement warranty. This warranty covers any mechanical defects, but does not include damage due to acts of god, neglect, water damage, or other intentional or unintentional abuses of the phone. OneSimCard does offer currently extended warranties available for purchase.
      8. Troubleshooting Questions
        • The battery in my phone does not last long? It got fully drained during the flight to Europe. Why?

          There can be a number of reasons why a battery does not hold a charge. Excluding the possibility of it being a faulty battery, there is another important factor to consider. If your phone is not registered on a roaming network, the battery will drain very quickly as the phone is constantly searching for a network to register on. So, if you get on a 6 hour flight and do not turn the phone off, by the time you land at the airport your battery will be drained and you will not be able to call back home.

          The same thing will happen in those areas with spotty or weak signal network coverage - the battery will drain very fast. It is always a good idea to have an extra battery with you when you travel abroad.

      9. How To Use Questions
        • I have a Verizon or Sprint "World Phone"¬†from BlackBerry, Samsung, LG KP series, etc., can I use it with OneSimCard?

          Yes, if you have a World Phone from Verizon or Sprint such as the BlackBerry (Bold, Curve, Tour, Pearl, Storm, 8830); LG (Fathom); LG KP Series, HTC (Touch, Ozone, Imagio); Samsung (Saga, Intrepid, Renown) you can use it with OneSimCard service. It may only require the special dialing instructions below to make outgoing calls (there is no additional charge). Receiving calls is the same as with any other phone.

          To make an outgoing call you may need to do the following:

          Initiate your call by sending a free SMS message from the regular SMS menu (not the OneSimCard Menu) of a OneSimCard enabled phone:

          To: 9146
          Message: 00 + Country Code + Number

          For example, to call to Boston USA you should go to the SMS menu of the phone and send a message:

          To: 9146
          Message: 0015844440686
          After your SMS is sent wait approximately 3-10 seconds. You will get a callback as usual and your call will be connected to the destination number.

           

          Please Note:

          1. You can not send this SMS from the SMS OneSimCard Menu of the phone, it must be sent using your phone's standard SMS function. You will not be charged for sending this SMS to 9146.

          2. If you see on the screen that the message has not been sent, make sure that the SMS settings of your phone are correct and that the SMS Center number is set to: +3725099000

      10. Rates and Cost Questions
        • Does calling to a mobile phone cost more than calling to a land line?

          No, it does not cost more to dial an international mobile number using OneSimCard service. You will receive the same very low per minute rate whether calling to a mobile phone or to a land line.

          You can find all rates listed on our Rates & Coverage page.

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