We are here to help you get answers to your questions about OneSimCard phones and services.
The  eSIM World, eSIM Asiania, OneSimCard Europe & More and Universal SIM cards do not use the callback to make an outgoing call in over 70 countries.
Currently, the mobile application to remove the callback on other SIM cards is not available.
How much does it cost someone in the US or Canada to call to my OneSimCard cell phone?
For Universal, Expedition, and eSIM World SIM cards, many U.S. and Canadian carriers can charge more than $3/minute to connect to an Estonian mobile number, the primary mobile number for a OneSimCard global SIM card. Your SIM card includes a U.S. number which will be much less expensive for people to call.
Callers can also use one of the Common Access Numbers (CAN) that we provide to you free of charge in more than 10 countries. Your OneSimCard account will simply be charged an additional 20c/min to the incoming rate in the country you are in to receive those calls. There is also the option of ordering a dedicated Personal Extra Number (PEN) in Canada and many other countries that will forward all calls directly to your OneSimCard cell phone. You can see the list of countries where PENs are available here:
You can order a Personal Extra Number when placing your order or later at any time by logging in to your account. Visit our Rates & Coverage page and choose any country to view all rates.
If you would prefer for the caller to pay for calls made, we recommend they buy Peanuts Prepaid. Using this service would guarantee a connection to your OneSimCard mobile phone from the U.S and Canada for 20c/min and it is very easy to use without switching your LD carrier.
For Physical 3-in-1Â DataMax and DataMax eSIM, if you chose to use SIM VOIP app, your friends and family will call the PEN number you are assigned, so in most cases, there will be no tariff for them to call you, and the cost to receive the call is only $0.01/Minute.
When I try to make a call, I get a message 'Call is modified and cannot be made'. What does that mean?
Some phone models do not allow direct dialing with older OneSimCard SIMs sold before January 1, 2017.
To get around this problem, you should try either of these methods:
* is a star character located on the keypad
Other examples of how to use the *146* dialing prefix if necessary:
The prefix *146* and # at the end can be used from any phone. However, newer OneSimCard SIM do not require it and you should be able to dial codes directly, 091, 094, 095, 099 or 098XXXX*XX Talk.
If you have an older SIM and the dialing does not work without entering *146*, please follow these simple instructions to remove the need to dial *146*:
How to activate compatibility mode:
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 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 and it looks like one of the apps
Newer SIM Cards: Select Compatibility option and make sure "On" is selected
Older SIM Cards: After selecting Settings:
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.
When dialed directly, some Nokia and other phones can display message: "Call is not allowed" or "Call is barred". Just ignore this message and wait for the ring-back for 10 seconds or so.
When does a Personal Extra Number (PEN) subscription start?
New SIM card orders with PENs
Your monthly, quarterly, bi-annual or annual subscription to a Personal Extra Number starts the moment your order has been shipped. If you do not need your Extra Number to be active right away, you can always wait and order an Extra Number later at any time by logging into your account.
eSIM orders on onesimcard.com do not require shipping.
PENs added to existing SIM cards
These PEN subscriptions are activated right after the order has been processed. The activation is virtuallyinstant, unless your PEN order requires additional documents for verification. Please see the local number information page for the list of any additional document requirements by country.
Free Trial PENs
Many SIM cards come with Free Trial PENs that are inactive by default. You can activate Free trial PENs at any time from your account.
BANK SMS Verification PEN
The SMS Verification PEN is the only PEN that can be used without a SIM card. These PENs are activated instantly if ordered on their own or added to an existing active SIM card.
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What is your Return/Refund policy?
We do not give refunds for airtime.
You may return an unused phone or OneSimCard SIM card within 30 days after our shipment of the item to you, provided you never placed a call to or from the mobile phone issued, all airtime is intact and the phone or OneSimCard SIM card is in new condition, in the original factory carton, including all packaging materials, inserts and manuals, warranty cards (not filled-out) and all related accessories. A 25% restocking fee will be applied, and shipping charges will not be refunded. Returned merchandise will not be accepted unless a Return Merchandise Authorization (an RMA) has been requested and issued by our Customer Support department. The RMA number must be clearly written on the outside of the box in order to be processed.
We will not refund airtime used on mis-dialed calls. If you are not sure how to dial a number in a specific country, please request support from customer service.
There are no refunds for sent SMS messages - either it was delivered to the recipient or not. Not all SMS messages can be or will be delivered.
We will not refund minutes used for calls to Customer Service. A call made to Customer Service will be billed at the same rate as a regular call made from the country in which you are located.
There will be no refunds for expired SIM Cards, even if, at the time of expiration, your SIM Card Account had a positive balance.
There will be no refunds for expired SIM Card Account balances should you fail to recharge your account with at least a $25 payment within ten (10) months of your preceding $25 recharge.Â
There will be no refunds of your account balance if you terminate the Service.
There will be no charge to your prepaid account if you do not answer the call back. Contact OneSimCard Customer Support for more help.
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What is the cost to make calls from a OneSimCard phone to another OneSimCard phone?
It depends on the country you're in when making the call. In many countries there is a special low rate of just $0.25/min to call another OneSimCard phone (only when dialing the other OneSimCard user's primary mobile number, not a Personal Extra Number). In other countries your cost will be our standard low outgoing call rate from that country.
Example: two OneSimCard users are in Italy and one calls the other, the cost will be $0.25/min for the caller and free for the receiver.
Visit our Rates & Coverage page and choose any country to view its current rates. Use the dropdown menus to see rates for calling to/from other countries.
PLEASE NOTE: If you activate a discount call plan, the special rate to make OneSimCard-to-OneSimCard calls will not be available. You will be charged for those calls according to the discount call plan rate.Â
Another great benefit of using OneSim VoIP: To call using the 1SIM VoIP App to another user on the 1SIM VoIP App, this call is free, so long as you are calling the PEN associated with their 1SIM VoIP App.
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Do you offer an eSIM option for iPhones, Androids or Tablets?
Yes. The OneSimCard eSIM option is available for use with iOS and Android phones, smart watches and even Windows tablets.
eSIM is not a physical SIM, but rather a program that can be downloaded to eSIM compatible phones and device.
The list of supported devices includes:
iOS:
Apple iPad models with an eSIM:
Learn more about eSIM compatibility on the eSIM page.
 Note: iPhonesmanufactured for the Chinese Market have 2 physical SIM card slots and are not eSIM capable. Pixel 3a can't use eSIM if the phone was purchased in Japan, or if bought with Verizon or Charter service.Can I use Facetime, WhatsApp, Telegram, Discord, iMessage, and other messaging Apps with eSIM?
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.
Are there any discount SMS text message plans available in Europe or other countries?
Discount SMS from Europe and many other countries are available with OneSimCard Universal, OneSimCard Plus, Expedition (formerly Data & Roam) and Europe & More SIM cards.
Discount SMS 100 Plan
When activated, this plan provides 100 free classic SMS messages sent from Europe to any number in any country in the world. Messages should be sent from the normal SMS menu of your phone and NOT from the OneSimCard 'Travel SMS' menu. SMS plan will be effective for 30 calendar days after the activation took place. The plan can be activated from your OneSimCard web account. Activation cost is 10.00 USD. Â
New SMS plans are available in following countries:
Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Martinique, Monaco, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Slovakia, Slovenia, Spain, Sweden, United Kingdom and Vatican City.
To check how many days and SMS messages are left, dial *146*922*1#
Screen will show the following message: "SMS package active for X day(s) more, You have already used X of XX free SMS"
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How can I contact customer support?
There are a number of ways you can contact customer support.
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