• 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.

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. 

 

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:

0. Open "OneSimCard" menu
0. Select "Settings"
0. Agree with message by pressing "Yes"
0. Dial digits "802" and select "OK" (screen will show message "output channel is SMS")

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:

0. Open "OneSimCard" menu
0. Select "Settings"
0. Agree with message by pressing "Yes"
0. Dial digits "801" and select "OK" (screen will show message "output channel is USSD")

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:

 

There are no special instructions to receive calls in these countries.

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, discount calling plans are available on select sim cards.

"Discount A" Voice Calls Plan

You can subscribe to the Discount Call Plan A for Europe (see country list below) and Turkey for just $3.99! Subscription is good for 30 days and will not automatically renew. This plan is available on the Plus and Universal SIM cards.

Once the discount plan is activated, you will be able to make calls from the countries below for only $0.15/min starting with the second minute! The first minute will be charged at the regular outgoing call rate:

Aland Islands, Austria, Azores, Belgium, Bulgaria, Canary Islands, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Latvia, Lithuania, Madeira, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Svalbard, Sweden, Turkey and United Kingdom.

For example, in Spain where our regular outgoing call rate is $0.49/min, a 15 minute call to the U.S. will now cost $2.74 instead of $7.35!

PLEASE NOTE: If you activate the discount A call plan, the special rate to make OneSimCard-to-OneSimCard calls and to call the voicemail system will not be available. Activation of this discount plan will also cancel the Discount B - Bucket of Minutes to USA, Canada, Australia and New Zealand. You will be charged for those calls according to the discount call plan rate. Discount rate not applicable for calls to Customer Support. Calling to some countries costs extra. Please consult our rates page for more details.

The discount voice subscription can be activated online by logging in to your account or by sending a command from your phone.

• From your online account: Log in, go to the 'My Sim Cards' menu and scroll down to the Discount Plans section to activate the subscription. Once activated, your account will display when the discount rate is set to expire.
  
  
• From your handset: To activate, simply dial *146*931# and press Send. If successful, you will see the following message on your screen: Discount Voice price activated. To check how many days remain on your subscription, dial *146*932# and press Send. The expiration date will also be displayed online in your 'My SIM Cards' menu. To deactivate discount call feature dial *146*930*1#. Deactivation of the feature will not cause the cost of the discount package to be refunded. This feature is needed when you make more calls between two OneSimCard phones than calling to any other places.

"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.