I have a Samsung phone. When I dial following your instructions it does not work. What's wrong?
How to activate compatibility mode:
 1. Locate and Open "OneSimCard" Menu. ( It could  be displayed as STK Menu)
    2. Select "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.
d when used with a OneSimCard.
I am traveling in Saudi Arabia and can receive calls, but I can't make an outgoing call. What should I do?
Local carriers in Saudi Arabia sometimes block standard OneSimCard outgoing calls. If this happens you need to either (a) enter a compatibility code into the settings of your phone or (b) initiate your call by sending an SMS message from the regular SMS menu (not the OneSimCard menu) of your phone.
How To Activate Compatibility Mode:
Bear in mind that if you have powered your telephone down and removed and reinstalled the battery, you will need to follow the programming steps outlined above again.
How To Deactivate Compatibility Mode:
How To Dial Without Activating Compatibility Mode:
Initiate your call by sending an SMS message from the regular SMS menu (not the OneSimCard menu) of your phone.
For example, to call from Saudi Arabia to Boston USA you should go to the SMS menu of the phone and send a message:
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There are no special instructions to receive calls in these countries.
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.
How do I set up SMS text messaging on my phone?
SMS messaging usually works without any additional setup of the phone.
In rare cases when there are issues sending or receiving text messages, please look at the following:
Problem with Sending SMS:
SMSC number should be set as follows:
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1. For Standard  and Plus OneSimCard SIM: +3725099000 for all countries except:
a. China:  +85290296747
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2. For the Expedition (former Data & Roam) SIM as well as for Europe & More SIM: +37256100041
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Special instructions for Apple Phones:
With Apple iPhones to check SMSC:
From the phone dialer Dial *#5005*7672#Â
You will see the SMSC set currently on the phone.Â
To change the SMSC on Iphone dial:Â
Plus and Standard SIMs: **5005*7672*+3725099000# for all countries except China and **5005*7672*+85290296747# if in China.
Expedition (formerly Data & Roam) and Europe & More SIMs in any country:Â **5005*7672*+37256100041#
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If your phone requires the name of Message Center Name enter: SMSC
SMS lifetime is short - must be at least 2 hours or set to Maximum settings.
Try sending SMS from OneSimCard menu
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 Problem with Receiving SMS:
I have an Apple iPhone. When I dial following your instructions it does not work. What's wrong?
 1. Locate OneSimCard Menu.
 On iPhones it is called SIM Applications menu and is located under Settings- Phone menu
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.
How do I make a call using OneSimCard global cell phone service?
To make a call:
With Europe & More, Univesal and eSIM World that do not use the callback to make a call, you will just get connected.
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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 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.
Does calling a mobile phone cost more than calling a landline?
It does not cost more to dial an international mobile number using OneSimCard service on traditional cellular connections. You will receive the same very low per minute rate whether calling to a mobile phone or to a land line.Â
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For OneSim VoIP, the cost of calling Mobile numbers is typically higher than calling landlines, but this method is still less than traditional voice calls in most countries..
You can find all rates listed on our Rates & Coverage page.
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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Can I get rewarded for referring friends to OneSimCard?
Yes, you can! Our Refer a Friend program is available to all OneSimCard active account holders. For each friend you refer that purchases new service, you will receive $10 ($5 for rentals) deposited into your 1SIM Money Fund. The referral bonus will be received once the order for new service is placed, shipped and the 30-day return window has closed. You can then use these bonus awards to recharge your airtime or use toward any other purchases. There are no limits to the number of friends you can refer or the bonuses you can receive!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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