FREQUENTLY ASKED QUESTIONS

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101. Rates and Cost Questions

    • Will I get a bill for using OneSimCard service?

      No. DataMax, DataMax eSIM, OneSimCard Universal, Expedition and eSIM World service is a prepaid service. You will not be able to spend more than you put on the SIM, except when you set the automatic recharge of the SIM. There are three simple ways to add funds to the balance of the SIM: from on-line, from the mobile phone and by setting up an automatic recharge. This pertains to both - purchased SIM cards.

      For funding the 1SIM VoIP App, there are three simple ways to add funds to the balance of the account: from on-line, from the mobile phone and by setting up an automatic recharge.
102. Troubleshooting Questions

    • I have a OneSimCard SIM and my phone will not register on a roaming network, what's wrong?

      Sometimes when moving from the USA, Canada or Mexico to another country, the SIM card will need to be reset to properly register on a new country roaming network.

      • If you have the OneSimCard Menu on your phone (it may be called Sim Application Menu on iPhones or SIM Toolkit on Androids), go to the menu, scroll down to Settings and enter Service Code 2003 and confirm, then Code 000 and confirm. For older SIM cards after this enter Service Code 1101 and confirm. Turn the phone off and then back on. 

      • If you do not have access to the OneSimCard Menu then turn off your phone, remove the battery for 20 seconds, reinstall the battery and then turn back on your phone.
103. Troubleshooting Questions

    • I can't send SMS from my iPhone

      There is a known bug with iPhone phone book. If you are trying to text to a contact that is entered in the phone book, and the contact is not entered in proper international number format, the SMS will not go through even if you just enter the number in the SMS menu directly and properly. 
      Please edit the record in the phone book to be +CountryCode_Number. It needs to have the + character in front, which is an equivalent of 00.

      You will also need to delete all recent attempts to send SMS to this number from the Messaging menu. It should be no conversation or attempts to send SMS left in the phone to this number.


      We understand that this is very frustrating, but do not know why Apple will not fix it. This problem affects only Apple phones.

      Example: for US Number 1-617-600-8250 you should have entered in the address book: +16176008250
      Delete existing text conversation after fixing the phone book record. 
      You can always test your SMS by sending SMS to OneSimCard Support number +16176008250 from your OneSimCard phone. This will create an automated ticket in the system and you will know if the message was delivered or not. You will be charged regular SMS rate for this message.
104. Troubleshooting Questions

    • When I send an SMS text message I am sometimes charged for multiple outgoing text messages, what's wrong?

      This means that your SMS text message has been split up into multiple messages because it contains too many characters.

      Each standard GSM format SMS text message can be a maximum of 160 characters. If you send a text in a foreign language or that contains any unsupported characters, the text will be sent in Unicode format with a maximum character length of 70. If your text exceeds these character limits then it will automatically be split up and sent as multiple messages and your account will be charged accordingly for each outgoing SMS text message.
105. Troubleshooting Questions

    • I just arrived in a foreign country and my phone is not working, what should I do?

      If you left your phone on during your flight or cruise then you should fully power down and restart your phone. Once your phone powers back on it should automatically select an available roaming network.

      If your phone is not a quad-band phone, please make sure that the bands of your phone are those required in the country of your travel. You can look it up here.
      In some countries like in USA turning off 3G mode of the phone will make it quicker for the phone to register on the network.
106. OneSim VoIP

    • I have more than one Personal Extra Number (PEN). Can I use different PENs for OneSim VoIP?

      If you have more than one OneSim VoIP enabled PEN you can switch between these PENs for the purpose of the OneSim VoIP account. This option is available in the My SIM Cards menu in your online account.
107. M2M SIM Cards

    • Will I be able to see the usage details for my M2M SIM card?

      Yes, all usage details and charges are available in the My SIM Card menu of the customer account.

      In addition, you can filter SIM cards using the following parameters:

      • SIM cards with Data Package to be activated when the traffic starts moving
        • This option allows you to view those SIM cards where data packages have been set up for activation and will be triggered automatically once data is moving on the SIM.

      • SIM cards with data packages scheduled to get activated later
        • This option displays SIM cards with data packages scheduled to be activated on a particular date.

      • SIM with the balance below X
        • This option displays SIM cards with low balances that might need your attention to ensure service is not interrupted due to lack of funds.

      • SIM cards with the data usage over the last X DAYS above Y MB
        • This option displays SIM cards with the data usage exceeding your projected usage or could be used for other usage monitoring applications.

      • SIM Cards with the $ spending – Top X % in 30 days
        • This option displays SIM cards that are consuming the most funds for data and SMS usage.

      • SIM cards that reached monthly additions limit
        • If monthly spending limits for SIM cards are set, this option allows you to view SIM cards that already reached the monthly limit and are temporarily not in service until additional funds are added.

      • SIM cards 10% below monthly additions limit
        • This option allows you to view the range of SIM cards that are about to reach the monthly limit (If you have set limits on the SIM cards.)
108. M2M SIM Cards

    • What is the expiration rule for OneSimCard M2M SIM card

      It depends on the type of account you have. For prepaid accounts the M2M OneSimCard will expire 60 days after the date when there is no balance on the SIM. Once the SIM card expires, it can't be reactivated. Different rules are applied to the Pooled accounts.
109. M2M SIM Cards

    • Are there any data packages available for M2M SIM cards?

      M2M SIM cards provide billing of data in 1 kb increments. In addition, small M2M data packages are available in the following countries: Albania, Armenia, Austria, Azerbaijan, Belarus, Belgium, Bulgaria, Canada, Croatia, Cyprus, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Kazakhstan, Latvia, Liechtenstein, Lithuania, Luxemburg, Malta, Mexico, Montenegro, Netherlands, Norway, Philippines, Poland, Portugal, Romania, Russia, Saudi Arabia, South Africa, South Korea, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Tajikistan, Thailand, Turkey, UK, Ukraine, USA, Uzbekistan, United Arab Emirates.

      You can view data package sizes and cost here.

       Once activated, M2M packages will run monthly until they are either cancelled by admin or there is no further data usage on the SIM. Only one M2M package can be purchased during the package time period. If the data allowance of the package is consumed before the package expiration date, billing will be switched to per kb  until the next 30 day package gets automatically activated at the end of the previous package time period. The new data package will not automatically activate if there is no data usage on the SIM at the time when the activation should occur. Once data usage restarts the new data package will be automatically activated.
110. M2M SIM Cards

    • What network coverage is offered on M2M SIM Card?

      OneSimCard M2M SIM works on major networks of the countries where it is being used.

      For example in USA the service is offered on AT&T, & T-Mobile networks. In Canada the service is offered on Rogers, Telus or Bell Canada. The switching between networks is automatic. The networks with the strongest signal will be selected to provide the best quality of service.

      You can view networks offered in each country on the M2M Rates and Coverage page.

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