OneSimCard FAQ

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

Back to Main Support Page

101. Troubleshooting Questions
    • I can't send SMS from my iPhone

      There is a known bug with iPhone phone book. If you are trying to text to a contact that is entered in the phone book, and the contact is not entered in proper international number format, the SMS will not go through even if you just enter the number in the SMS menu directly and properly. 
      Please edit the record in the phone book to be +CountryCode_Number. It needs to have the + character in front, which is an equivalent of 00.

      You will also need to delete all recent attempts to send SMS to this number from the Messaging menu. It should be no conversation or attempts to send SMS left in the phone to this number.


      We understand that this is very frustrating, but do not know why Apple will not fix it. This problem affects only Apple phones.

      Example: for US Number 1-617-600-8250 you should have entered in the address book: +16176008250
      Delete existing text conversation after fixing the phone book record. 
      You can always test your SMS by sending SMS to OneSimCard Support number +16176008250 from your OneSimCard phone. This will create an automated ticket in the system and you will know if the message was delivered or not. You will be charged regular SMS rate for this message.
102. How To Use Questions
    • How to activate and set up the mobile data service on your mobile device or tablet?

      1. Log in to your account at www.onesimcard.com using the email address and password you entered during the activation or registration of the SIM.
      2. To enable data, go to your My SIM Cards menu, select your SIM card, scroll down to Internet Data and click ‘Enable’.
      2a. For DataMax SIM cards, you can disable Pay-As-You-Go (PAYG)/Per MB data on your online account in the "My SIM Cards" menu. You will see " in the "Select SIM Card" section an area labeled "Use w/o Plan:" to disable per MB data use, this should be turned off. It is recommended to use data plans whenever/wherever available.
      3. Turn on Data Roaming on your phone.
      This is all that is needed for mobile data to work.



103. 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.
104. Ordering Questions
    • How do I order Discount Call, Text and Data plans?

      You can order discount Call, Text and Data packages from your OneSimCard web account after you have received and activated your OneSimCard. 

      NOTE: for DataMax and DataMax eSIM, there are no call or text messaging discount package, since these are already deeply discounted through the 1SIM VoIP App.

      To order a discount package for your SIM card, follow these steps:

      1. Log into your account at OneSimCard.com
      2. Click on the My SIM Cards menu links
      3. If you have more than one SIM card, make sure the SIM Card you’d like to activate a discount package for is selected
      4. Navigate to the Discount Service Plans section and select a discount package you would like to activate
      5. Click Activate Now to activate the selected package immediately or Activate Later to schedule the activation on a particular date.

       

      Future data plan activation:

      a. You can set up the maximum number of times data packages to be activated automatically when the package is used up or expired.

      b. You can set the date after which no packages will be activated, so when your travel is over no data packages will be activated and no charges will follow.

      Note: eSIM World data plan activation may vary from regular Universal or Expedition SIM cards. Please follow directions on the account page.

      To learn more about the availability of discount packages for different SIM cards and countries, please visit the Rates & Coverage page.

       

105. OneSim VoIP
    • Why can't I receive phone calls and SMS on my Android phone when the screen is off?

      Newer Android OS versions have settings that do not allow apps to run in the background by default. This means that you will get an SMS or a phone call only while your phone display is ON. Once the  phone goes to sleep, the app will get deactivated.

      To fix this, you need to make a change in your phone's battery and data use optimization settings:

      Settings -> Apps and notifications -> See All Apps -> 1SimVoIP -> Advanced -> Battery -> set to "Unrestricted"


      Settings -> Apps and notifications -> See All Apps -> 1SimVoIP - turn Background Data and Unrestricted Data Usage both ON.

      Restart the phone.
106. Troubleshooting Questions
    • How do I enable roaming on my Android Phone?

      This is very simple! 
      1. Go into your "Settings" app, and choose "Connections"
      2. Click on "Mobile Networks"
      3. Toggle on "International Data Roaming"
      We also created a short video here: https://youtu.be/zFu3FLFfdmo to demostrate this.
107. M2M SIM Cards
    • Are there any data packages available for M2M SIM cards?

      M2M SIM cards provide billing of data in 1 kb increments. In addition, small M2M data packages are available in the following countries: Albania, Armenia, Austria, Azerbaijan, Belarus, Belgium, Bulgaria, Canada, Croatia, Cyprus, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Kazakhstan, Latvia, Liechtenstein, Lithuania, Luxemburg, Malta, Mexico, Montenegro, Netherlands, Norway, Philippines, Poland, Portugal, Romania, Russia, Saudi Arabia, South Africa, South Korea, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Tajikistan, Thailand, Turkey, UK, Ukraine, USA, Uzbekistan, United Arab Emirates.

      You can view data package sizes and cost here.

      Once activated, M2M packages will run monthly until they are either cancelled by admin or there is no further data usage on the SIM. Only one M2M package can be purchased during the package time period. If the data allowance of the package is consumed before the package expiration date, billing will be switched to per kb  until the next 30 day package gets automatically activated at the end of the previous package time period. The new data package will not automatically activate if there is no data usage on the SIM at the time when the activation should occur. Once data usage restarts the new data package will be automatically activated.
108. M2M SIM Cards
    • What services are provided on M2M SIM Card?

      OneSimCard M2M SIM Card offers Internet Data and SMS Service. Voice is not available. If you require Voice, please consider buying Expedition or Universal SIM at www.OneSimCard.com

109. M2M SIM Cards
    • What network coverage is offered on M2M SIM Card?

      OneSimCard M2M SIM works on major networks of the countries where it is being used.

      For example in USA the service is offered on AT&T, & T-Mobile networks. In Canada the service is offered on Rogers, Telus or Bell Canada. The switching between networks is automatic. The networks with the strongest signal will be selected to provide the best quality of service.

      You can view networks offered in each country on the M2M Rates and Coverage page.
110. M2M SIM Cards
    • What is the expiration rule for OneSimCard M2M SIM card

      It depends on the type of account you have. For prepaid accounts the M2M OneSimCard will expire 60 days after the date when there is no balance on the SIM. Once the SIM card expires, it can't be reactivated. Different rules are applied to the Pooled accounts.

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

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