FREQUENTLY ASKED QUESTIONS

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

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41. How To Use Questions
    • Can I forward calls from my OneSimCard phone to another number?

      Yes. Your Universal, Expedition and eSIM World OneSimCard mobile number can currently be forwarded to EU, Canada, USA, Russia, Ukraine and Belarus numbers. It's 100% free to forward your OneSimCard phone number to many countries including to U.S. or Canadian numbers. Forwarding to some countries, as well as to satellite phones, will carry a forwarding charge as listed in the Rates & Coverage page on OneSimCard.com.

      To enable/disable call forwarding from your online account:

      Log in at OneSimCard.com and go to the My SIM Cards menu. Select your SIM card number and enable/disable Call Forwarding on this screen.

      To enable/disable call forwarding from your phone:

      Dial *146*081*XXXXXXXXXXXXX# and press Send/Talk (where XXXXXXXXXXXXX is the forward-to number in international format: 00+countrycode+number)

      Newer SIM cards use *81* instead of *081*

      Example: to forward to U.S. number 1-617-555-1212, dial *146*081*0016175551212# and press Send/Talk.

      If you get an "Unknown Format?" message, dial *146*81*0016175551212#

      To disable call forwarding, dial *146*080# and press Send/Talk. If you get an "Unknown Format?" message dial *146*80# and press Send/Talk.

42. How To Use Questions
    • How do I check my OneSimCard balance?

      For Universal, Expedition, & eSIM World ONLY: 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.

      You can always check your current balance by logging onto your OneSimCard account at www.onesimcard.com.

43. Rates and Cost Questions
    • Is it free for someone to call my OneSimCard number using Viber?

      Through a unique partnership with Viber, your primary OneSimCard number (+372) can be called free of charge for any Viber user! (requires activation and special dialing instructions, see below)

      HOW: When this feature is activated, Viber users can call OneSimCard numbers for free by using a special dialing format +372800XXXXXXXX, where XXXXXXXX is the rest of the OneSimCard phone number after 372. For example, a OneSimCard user with the phone number +37212345678 should be called by dialing +37280012345678.

      TO ACTIVATE: Log in to your OneSimCard account and go to the My SIM Cards menu. Scroll down to where it says "Incoming Viber Calls" and click Enable to activate this option.

      COST: The call is free for the Viber user. The cost of receiving the Viber call is the same as receiving a call through a Personal Extra Number (PEN), i.e. the regular incoming call rate in the country you are in plus 20c/min. In countries with free incoming calls, like Italy or Japan, the cost will be just 20c/min.

      PLEASE NOTE:

      • When dialing in Viber, if Viber user chooses the Estonian country code in the menu then they should just dial 800XXXXXXXX because the +372 is added automatically.
      • If the “free calls to OneSimCard from Viber” option is not activated for a particular OneSimCard number, when a Viber user dials +372800XXXXXXXX they will hear an automatic message: “The mobile phone is either switched off or out of coverage area.”

      PLEASE NOTE: Viber is not available for the DataMax or DataMax eSIM

44. Ordering Questions
    • Can I upgrade my Standard SIM to a Universal, DataMax or DataMax eSIM SIM or my regular size SIM to a micro or nano SIM?

      Yes. If you would like to upgrade your Standard, Plus, Europe & More, Expedition version SIM card to a Universal, DataMax, or DataMax eSIM SIM card, or upgrade a regular size SIM card to a micro-SIM card (for example, to use in an iPhones) then place your order online by selecting the product option on our Mobile Accessories page here. In the shopping cart you will be able to select your upgrade.

       

45. 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 extended warranties available for purchase.

46. How To Use Questions
    • How can I add airtime to my OneSimCard service?

      In order to add airtime instantly, simply register a credit card with us on our website.

      There are several ways to add airtime to your OneSimCard service.
      Automatic Recharge - recommended:

      1. Just log on to your account at www.onesimcard.com and set auto-recharge in the Recharge Menu. Funds will be added to your account when your balance drops below the threshold you set.

      From the phone using your credit card (Universal, Expedition and eSIM World only):

      1. a) From the phone dial pad dial 098YYYY*XX. Talk. YYYY = Last 4 digits of the credit card used last at OneSimCard.com. YY = Amount from 25 to 99 USD


       For example, if you need to add $50 and the last 4 digits of the credit card registered with us 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
      From the phone using 1SIM Fund:
       a) From the phone dialpad dial 098YYYY*XX. Talk. YYYY -  4 digits PIN you created in 1SIM FUND menu. YY Amount from 25 to 99 USD

       For example, if you need to add $50 and the 1SIM FUND 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

      From the OneSimCard.com web interface:

      1. You must log in at www.onesimcard.com each time you wish to add funds.
      2. The minimum recharge amount is US $25.00
      3. Using Recharge PIN purchased from a dealer:

      If you purchased a recharge PIN from OneSimCard Authorized dealer, you can recharge your account from OneSimCard handset from OneSimCard - Add Credit menu. When the Add Credit menu is selected, enter the 10-digit PIN and press the Talk (Send) button. 

47. Ordering Questions
    • Do I need to activate the SIM card when my order is received or purchased from a retail store?

      Yes, you will need to activate the SIM card once the order is received.

      All OneSimCard international SIM cards and international cell phones with SIM cards are shipped inactive to prevent theft and improve security. Only the person who placed the order for OneSimCard service can activate it.

      Activation is very simple: When you receive the SIM, just log in to your account at www.OneSimCard.com and click the large Activate button you will see in the middle of the screen.

      Retail Customers: If you purchased your SIM card through an online or brick-and-mortar retail store, you should have received activation instructions inside the product packaging. To activate retail SIM cards, go to www.OneSimCard.com/Retail enter your new OneSimCard international mobile number and fill out the form to register and activate the SIM card. You will be provided specific instructions on the registration page.

48. Ordering Questions
    • How long will it take for my OneSimCard to be delivered?

      Your order will be shipped the next business day.

      We offer several delivery options for shipments to the USA:

      • USPS First Class Mail Package

      Your order should arrive in 1-5 business days,Tracking is available for US deliveries. It is not available for international deliveries.

      • USPS Priority mail
        Your order should arrive within 2-3 business days, but it is not guaranteed. You will be provided tracking details with this method
      • UPS UPS Next Day Early.
        Delivery guaranteed by 10 AM or 3 PM.
      • UPS 2nd Day Air
        Delivery is guaranteed in 2 business days.
      • UPS Next Day
        Next day delivery to most locations in the USA.
      • UPS Next Day Saver

      Next day delivery to most locations in the USA

      • UPS Ground
        Delivery guaranteed in 1-6 business days depending on the destination from Boston, where we ship from.
      • USPS Express Mail Large Envelope or Flat

      1-2 business days

      For orders shipped outside of USA:

      • International Air Mail - usually takes 5 to 30 business days, no tracking
      • US Postal Service International Priority - delivery time depends on the country
      • UPS International - 2-6 business days - depends on the country and location in the country. This is the most reliable shipping option.

      You will get more detailed information about the delivery to your destination when you start placing your order.

      Any eSIM order does not require any shipping so this is a great way to avoid shipping costs and time. Just download and go!

49. Rates and Cost Questions
    • In which countries will the OneSimCard Europe & More work?

      Armenia, Austria, Belgium, Bulgaria, Canada, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy, Kazakhstan, Latvia, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal, Romania, Russia, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, USA and Vatican City

50. Rates and Cost Questions
    • How does OneSimCard compare to the international roaming from the largest US carriers?

      OneSimCard can help you save a lot of money on international roaming abroad over large domestic carriers. Check out these rate tables to compare international roaming offerings from AT&TVerizon,  and T-Mobile

       

       

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