FREQUENTLY ASKED QUESTIONS

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

Search OneSimCard Support Pages:

Back to Main Support Page

81. 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.
82. Ordering Questions

    • What kind of payments do you accept?

      We accept Visa, MasterCard, Discover, American Express and Bitcoin.

      U.S. corporations can pay with company checks, ACH or wire transfer. No order will be processed until funds are cleared

      For international customers with credit cards issued outside of the U.S. we require the order to be verified using the OneSimCard verification procedure. We do accept credit cards from most foreign countries.

      Attention: Customers from the following countries must use Bitcoin option only (we will not accept credit cards as a form of payment): Congo, Egypt, Ghana, Lebanon, Nigeria, Pakistan, Palestine and Syria.

       

      To make it simpler, you can deposit money into your OneSimCard Money Fund and then use the funds to make all purchases at OneSimCard.com including airtime recharges.
83. OneSim VoIP

    • Can I call using OneSim VoIP from countries where OneSimCard does not offer roaming coverage?

      Yes. You can call from absolutely anywhere as long as you have a good Wi-Fi connection.
84. Ordering Questions

    • Will you ship to Europe, Australia, Africa, Asia or other international locations?

      We will ship to Europe or Africa or to any other continent. 


      Products can be shipped by USPS or UPS or using local carriers in Australia, Canada, Japan and Mexico. You will be offered shipping options at the time you place an order. Shipping options include overnight shipping.
85. OneSim VoIP

    • When making an outgoing call how do I select which way the call should go: through regular roaming or through OneSim VoIP?

      To make an outgoing call using OneSim VoIP, you need to be registered on a Wi-Fi network and have the OneSim VoIP app running on your phone. You should make the call using the OneSim VoIP app dial pad. To make a call the regular roaming way,you should make a call from your regular phone dial pad. 

      NOTE: Regular roaming calling is NOT available on DataMax or DataMax eSIM cards. To use voice you will need to use the OneSim VoIP app
86. OneSim VoIP

    • When I make a call using OneSim VoIP the quality of the call is not as good as the quality of the regular roaming connection. Can this be improved?

      The quality of a OneSim VoIP call is only defined by the quality of your Wi-Fi connection. This is the part of the connection that we can not control. Quality of the Wi-Fi connection is defined by many parameters, rather than just by the speed of the connection. With a good Wi-Fi connection the quality of the call will be similar to using our regular roaming network.
87. eSIM

    • Is there an eSIM App for Apple iOS and Android devices?

      Yes. The 1Sim eSIM app is available at:

      Get it on Google Play



      These apps allow for much easier management of eSIM data plans.

      To connect your eSIM app to your existing web account at www.onesimcard.com, please complete the following simple steps:

      1. Install eSIM app

      2. Log in to the eSIM app using email and password for your current online OneSimCard account

      That is all. You will be able to see the device connected to your web account in the MY SIM Cards menu of your account at www.OneSimCard.com

      Customers who ordered an eSIM directly from the eSIM app do not need to connect the app and their online account at OneSimCard.com as they are already connected.


88. How To Use Questions

    • How do I make a call using OneSimCard global cell phone service?

      To make a call:

      • Dial 00-CountryCode-AreaCode-Number and press the TALK/SEND button.
        Example: To call OneSimCard Support in the USA you would dial 00 1 617 3138888 and press TALK/SEND. 

      With Europe & More, Univesal and eSIM World that do not use the callback to make a call, you will just get connected.
       
      With OneSimCard Plus SIM or Expedition (formerly Data & Roam) SIMs:

      After pressing the TALK/SEND button you will see a variable message on the screen (for example 'Wait for call') which you can ignore and your phone will ring back in a few seconds. Answer this ring as you normally would answer any incoming call. Your call will then be connected.

      If you are unsure about how to properly dial an international number, follow this link for detailed country by country dialing instructions.

      For Physical 3-in-1 DataMax, and DataMax eSIM cards, you can place calls using our low cost OneSIM VoIP service. OneSim VoIP costs much less than traditional voice roaming.
89. How To Use Questions

    • How do I recharge using 1SIM Fund?


      First you need to make sure you have funds in your 1SIM Money Fund.

      You can do this by going to your 1SIM Fund menu and adding money from your, Visa Cards enrolled in Verified By Visa program, MasterCard enrolled in the Secure Code program or Bitcoin.

      Once you have money in your fund, then you can add funds to the phone service by one of the following methods:

      To recharge from your onesimcard.com portal:
      1. Go to Recharge Menu and recharge your SIM
        or
      2. Set up auto-recharge in Recharge Settings Menu

      To recharge from the phone using 1SIM Fund:

      Before being able to add money using 1SIM Fund from the phone, you need to log in to your onesimcard.com portal and create a PIN in 1SIM FUND menu.

      To recharge from the phone with Universal, Expedition, or eSIM World SIM Cards:
      • From the OneSimCard menu of your phone, scroll down to Add Credit and select this option.
        You will see 'Please enter PIN' on the screen.
        Enter 4 digit 1SIM Fund PIN + * + Amount + press the OK.
        For example, if you need to add $50 and the PIN is 8654:
        You would dial 8654*50 and press OK. In few seconds you will get a confirmation message with your new balance.
      • Alternatively you can do the same from the main dial menu of the phone by dialing: 098+PIN+*+Amount+ Talk (Send) button.
        For example, if you need to add $50 and the PIN is 8654:
        You would dial 0988654*50 and press TALK. In few seconds you will get a confirmation message with your new balance.
            * is a star character located on the keypad

      Money will be deducted from your 1SIM Fund balance.
90. Ordering Questions

    • Can I use OneSimCard service if my phone is locked?

      Yes. There are a few options available if your phone is locked to the carrier that sold you the phone.

      • Try contacting the carrier to see if they unlock it for you.
      • You can purchase a travel phone bundle with the SIM at

                 http://www.onesimcard.com/international-cell-phones/

      You can purchase a MI-FI device with aOneSimCard SIM card (Universal, Expedition or DataMax physical SIM card) at http://www.onesimcard.com/international-cell-phones/. The Mi-Fi device will provide your locked Android or iPhone with mobile data over Wi-Fi connection that you can use on your phone for Voice and Texts using SIM VOIP app, as well as data for web browsing, email, GPS navigation, etc.

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

Support
Customer support
 
TOP RATED
Customer Reviews
FAQ

© 2006-2026 Belmont Telecom Inc., DBA OneSimCard.com. All rights reserved