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61. eSIM

    • How do I install my eSIM?

      Before purchasing, please ensure you have verified that your device is unlocked and one of the supported devices. Installation is completed by using your phone to scan the QR code of the purchased eSIM.  You may scan the QR code by displaying it on the computer screen, another device, or a printed copy.

      If you’ve already purchased OneSimCard eSIM, you can see full installation instructions and access your QR code from the Recharge menu in your online account. Make sure eSIM is selected in the Select SIM Card drop down menu.

      If you have not purchased your eSIM yet, learn more about international eSIM here.
62. OneSim VoIP

    • Is there any additional cost to create a OneSim VoIP account?

      There is no additional cost except for the fact that you need to have a compatible Personal Extra Number (PEN) active on your SIM card.
63. OneSim VoIP

    • Does voicemail work with OneSim VoIP?

      Yes. If you are not available to answer the OneSim VoIP call or if the OneSim VoIP app is turned off, the call will be routed through our standard roaming network. If the call is not answered it will be sent to your OneSimCard voicemail box. 

      NOTE: Voicemail is not available for DataMax or DataMax eSIM cards with OneSim VoIP.
64. eSIM

    • How does eSIM works?

      eSIM is not a physical SIM. It is a piece of software downloaded to a compatible phone. So there is no shipping involved with delivering eSIM.


      eSIM makes your iPhone or Pixel phone to be a dual SIM phone. This means that you can use two sim cards on the phone at the same time. You can select which SIM card is used for calls and texts, and which one is used for data. You can select which sim card is to be the primary and which one not to be used. You can make these changes from the settings of your phone at any time. In short - eSIM offers greater flexibility to your eSIM compatible phone. It allows you to use the service provider of your choice - whether you are traveling or staying home.


      OneSimCard eSIM can be installed only on a single device. It can't be moved to another device, but it can be re-installed on the original device up to 10 times if required.
65. OneSim VoIP

    • Do I need to have a OneSimCard SIM card installed in my phone to use OneSim VoIP?

      No. OneSimCard SIM is not required to be installed in the phone for OneSim VoIP to be used. However, you do need to have OneSimCard account with a VoIP capable PEN.
66. Rates and Cost Questions

    • Can I Pay with BitCoins?

      Yes, You can pay with Bitcoins.

       

      Yes, You can pay with Bitcoins.


      When paying with Bitcoins you first deposit money into your 1SIM Money Fund. Once the money is there, you can make a purchase or set an automatic recharge of you SIM card(s) or Extra Number(s).


      Follow these steps:

      1. Go to www.onesimcard.com and if not registered yet, register by clicking on the Register link in the upper right corner of the screen.
      2. Once registered, log in to your account at www.onesimcard.com and proceed to 1SIM FUND menu.
      3. Select amount you would like to add to your OneSimCard fund.
      4. Click on BITCOIN button. You will be provided with few options for sending bitcoins.
      5. Follow the instructions on the screen.
      6. Once paid and funds are received by OneSimCard, you will be notified by email. While it usually takes no more than 2 hour for the payment to be posted to your 1SIM FUND, it could take up to 24 hours. Once you receive the confirmation email, you can log in to your OneSimCard.com account and make a purchase or recharge using the balance of your 1SIM FUND.
67. OneSim VoIP

    • How do I know if the Personal Extra Number (PEN) I currently have is OneSim VoIP compatible?

      Log in to your OneSimCard account, go to the My Sim Cards menu and scroll down. If your PEN is VoIP compatible you will see an option to create a OneSim VoIP account. At this time all OneSimCard PENs are SIM VOIP capable except for UK Mobile numbers.
68. Rates and Cost Questions

    • Are there any additional roaming charges?

      There are NO additional roaming charges. The rates you see listed on our Rates & Coverage page are the only rates you will be charged when making or receiving calls on your OneSimCard enabled cell phone. This is true for using regular cellular voice or 1SIM VoIP App.
69. eSIM

    • Can I use Facetime, WhatsApp, Telegram, Discord, iMessage, and other messaging Apps with eSIM?

      Yes, you can use your messaging apps with eSIM World, which now offers a mobile number ID. 

      For DataMax eSIM, you can use these Apps as you already do. Please ensure your messaging account is already setup with your primary carrier’s phone number because you cannot sign up for these services with the DataMax eSIM number.

      Additionally, the eSIM data service can be used for the actual data part of your communications. So, when you are installing eSIM on phone, you can select the Primary service for Facetime and iMessage and then if your selected eSIM to be your primary data service, the communications will go over eSIM mobile data.
70. OneSim VoIP

    • I can make calls through OneSim VoIP. However incoming calls are going through my roaming SIM. What's wrong?

      If your incoming calls are not being routed through the OneSim VoIP app then you are either not connected to Wi-Fi or the OneSim VoIP app is not active.

      Please make sure to check your phone's sleep settings, as they are usually preset to have Wi-Fi turn off when the phone enters sleep mode. To prevent this and to keep OneSim VoIP active for incoming calls, find the settings in your phone and set it so Wi-Fi does not turn off when the phone enters sleep mode.

      Note: if the OneSim VoIP logo on the top of your phone display is gray then you will not be able to receive calls through the application. When the logo is yellow that means you are connected and can receive calls through OneSim VoIP.

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