FREQUENTLY ASKED QUESTIONS

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.

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&T, Verizon,  and T-Mobile. 

 

Yes, in Europe the emergency number is 112. You can use 112 in Europe to report real emergencies to local authorities in the country of stay. The 3 digit number should be dialed directly without any additional digits in front of the number.

 

For DataMax and DataMax eSIM SIM cards, while there is no voice calling feature without the use of 1SIM VoIP, which doesn’t support emergency calling, most cell phones ALWAYS allow you to call emergency numbers, even without a SIM inserted into the phone. In Europe the emergency number is 112. You can use 112 in Europe to report real emergencies to local authorities in the country of stay. The 3 digit number should be dialed directly using the regular phone app (NOT the OneSim VoIP App) without any additional digits in front of the number.

• 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

How to activate compatibility mode:

  1. Locate and Open "OneSimCard" Menu. ( It could  be displayed as STK Menu)

        2. Select "Settings"

3. Agree with message by pressing "Yes"
4. 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.

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.  

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"

 

 

Yes, discount calling plans are available on select sim cards.

 

"Discount B" Voice Calls Plan

The Minute Buckets offer calling from 130 countries to United States, Canada, Australia and New Zealand at deeply discounted rates. These plans are available on the Standard, Plus and Universal SIM cards.

Available Discount B plans:

The Minute Bucket minutes will be usable in all countries where the package is available.

The following additional rules govern Minute Bucket purchases:

• Only one package can be activated at a time.
• Additional buckets could be ordered consecutively.
• If one of the Minute Buckets is purchased, any other activated voice packages or discounts will be deactivated.
• Calls to Customer Support will be deducted from the Minute Bucket package minutes.
• Calls between OneSimCard phones and calls to the user’s Voicemail are not included in the Minute Bucket packages.
• After the time period of the Minute Bucket package has expired, any remaining minutes will be lost.
• Once the bucket is used up, the billing will revert to standard calling rates.
• Bucket Minutes are used for outgoing calls only. Incoming calls on the main 372 number of the SIM are free and unlimited.

To see countries where the Minute Buckets apply, go to the Rates and Coverage page and select From and To Country and the Plus SIM type in the pull-down menu. Visit the Rates and Coverage page.

 

Please note:

• It's not possible to purchase more than one voice plan at once
• If one of the voice plans is purchased, all other discount plans are automatically deactivated
• Calls from SIM to SIM and Voicemail are not included in this plan

Activation of the plan:

To order a voice plan, login to your OneSimCard web account, click on the My SIM Cards menu and navigate to the Discount Voice Plans section. Select the desired plan and click one of the Activate buttons. Follow the system prompts to finish the activation. 

NOTE: There are no discount plans available on OneSIM VoIP. Because the cost of OneSIM VoIP is so deeply discounted, there are no packages available for voice on OneSIM VoIP.

The SIM card does not offer SMS service to short code numbers

If your phone or SIM card is lost or stolen and automatic recharge is on, this could be a serious problem.

To prevent this, log in to your account and activate the option to block your service immediately after you notice your phone or SIM card is missing. You can find this option in the My SIM Cards menu. Your OneSimCard service for this SIM card number will be instantly blocked. The remaining balance on your lost SIM can be transferred to another SIM card on your account or you can order a replacement SIM card if you would like to keep your phone numbers from the lost SIM. However, the existing data package can’t be transferred to the new SIM card.

Alternatively, you can contact customer service online or call 001-617-313-8888 for assistance.

Yes! Our myOneSim app for the iPhone devices will let you easily access many account services, such as recharging your account, checking voicemail, ordering discount voice and text plans, and much more. MyOneSim is available for download from the App store. Find more information in the Help section of your online account.

 

DataMax SIM cards can't be managed by myOneSim app at this time