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1. OneSimCard General Service Questions
    • What Is the Difference Between "Direct Dial" and "Callback Dial" calling?

      Direct Dial calling allows the caller to enter the international  call prefix, country calling code and telephone number and then be directly connected to the person they are calling. This is how you dial when using your regular mobile service. Direct Dial Calling is standard on the OneSimCard Europe & More.

      Callback calling also allows the caller to enter the international  call prefix, country calling code and telephone number. After the called number is entered, the user immediately receives an incoming call connecting the user to person called. Callback is very simple to use and allows for low cost calling on the OneSimCard Plus and OneSimCard Data & Roam. Callback does not increase the connection time. It is the same as with Direct Dial. Usage of the OneSimCard Direct mobile app hides the callback. 

2. How To Use Questions
    • Is there any way to remove the callback ring after I dial a number?

      The newly offered OneSimCard Europe & More does not use the callback to make an outgoing call.

       

      With OneSimCard Plus or Data & Roam SIM:

      Normally, when you make a call with OneSimCard the phone will ring back within a few seconds after dialing and you will then get connected. You can eliminate this callback if you have a smarphone running Android (OS version 5 or below) by downloading and installing our OneSimCard Direct mobile app. Alternatively, you can purchase our Global Dual SIM Quad-Band GSM Unlocked International Cell Phone which has built-in software that automatically removes the callback.

      For phones using Android (OS version 5 or below):

      OneSimCard Direct allows you to hide the callback and makes it easier to make a call directly from your phone's address book.

      Once the application is installed on your phone, please run it once and then turn your phone off and back on. You will then be able to dial without receiving the callback.
3. 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 compatibily 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.

           

          Please bear in mind that Android phones can use OneSimCard Direct App available free for download from Google Play.  Using this app takes care of the Android phones compatibility issues, allows to remove the callback ring (Android OS version 5 or below) and also will automatically correct mis-dialed phone calls in most cases. iPhone users can download OneSimCard Assist App from iTunes that will do the same, 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.

           

           

      4. 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.


          5. OneSim VoIP
            • When making an outgoing call how do I select which way the call should go – 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 using the OneSimCard Direct app or from your regular phone dial pad.
          6. OneSimCard General Service Questions
            • Are there any international toll-free or local Common Access Numbers (CAN)?

              OneSimCard international mobile service does not require dialing any access numbers when calling from international locations, you simply dial as you normally would when you're abroad. However, when somebody is calling to your OneSimCard phone there is an option for them to call you through a Toll Free or local number rather than dialing your European mobile number directly, which could be expensive for them. This call will instead be charged to your OneSimCard account at an additional 20c/min to the incoming rate in the country where you are receiving the call.

              When someone calls you through a Common Access Number they receive a prompt where they then enter your primary European number starting with 372 to reach you. For a direct connection, we recommend adding a Personal Extra Number (PEN) instead.

              At this time we have Toll Free and/or Local Common Access Numbers in the following countries:

              • Argentina
              • Australia
              • Austria
              • Argentina
              • Brazil
              • Canada
              • Cyprus
              • France
              • Germany
              • Greece
              • Hong Kong
              • Israel
              • Mexico
              • New Zealand
              • Russia
              • Spain
              • UK
              • USA - Toll Free as well as local Common Access Numbers in New York City, Washington DC and Los Angeles


              You can find these numbers in the User Guide or while logged in to your OneSimCard web account portal.

          7. How To Use Questions
            • How Do I Check The Balance Of Purchased Data Package?

              There are three ways to check the remaining balance of purchased data package.

               

              1. On-line in OneSimCard Menu of your account in the Discount Section of the page.

              2. On Android Phones - from OneSimCard Direct App and on Apple devices from OneSimCard Assist app

              3. From OneSimCard mobile phone: 

                                                      Dial the following:

              *146*942#

               

              The remaining data balance will be displayed.

          8. 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:
              • BlackBerry® 6210: Press Alt (bottom, far left on keyboard) and the letter "I".
              • 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.
          9. How To Use Questions
            • How do I check my OneSimCard balance?

              Just dial 099 "Send" from your OneSimCard phone and in few minutes the balance will be displayed on the screen of your phone. Customers with iPhones can use OneSimCard Assist app to check balances and many other things. Customers with Android phones can use OneSimCard Direct app for this.

              You can always check your current balance by logging onto your OneSimCard account at www.onesimcard.com.
          10. OneSimCard General Service Questions
            • What is the difference between OneSimCard Plus, OneSimCard Data & Roam and OneSimCard Europe & More SIM cards?

              All 3 OneSimCard SIMs work in a very similar manner.  They all use an Estonian Mobile Number as the primary number and offer a Free US or Canada PEN for 30 days. All OneSimCards also offer many  additional features such as Global Concierge, 24/7 Live Technical Support, SIM VOIP and Apps for iPhone and Android.

              The main difference between the 3 SIM cards is that OneSimCard Plus offers Voice and SMS Text Messaging in many more countries.  The OneSimCard Data & Roam is recommended mostly for Internet Data on iPads, Smart Phones, Mi-FI devices and generally offers lower Internet Data Rates and Data Services in many more countries .  For some countries like Canada, Cuba, Brazil and a few others, the OneSimCard Data & Roam offers lower calling rates. 

              The OneSimCard Europe & More was specially created for European travelers and offers our best calling rates to the US & Canada,  from the 40 included countries, all with easy Direct Dialing, while OneSimCard Plus and OneSimCard Data & Roam utilize callback.

              OneSimCard Plus, OneSimCard Data & Roam and OneSimCard Europe & More also operate on different networks in many countries.

              You can compare rates for all these SIM cards here.

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