Frequently Asked Questions

BLOCK INTERNATIONAL INCOMING CALLS AND SMS

 

  1. What is the new name of the add-ons?
    The add-ons formerly known as ‘Overseas Incoming Call Barring’ and ‘Overseas Incoming SMS Barring’ will be renamed to 'Block International Incoming Calls’ and ‘Block International Incoming SMS,’ respectively, effective 26 September 2024.​
  2. Why were the names of the add-ons changed, and are there any changes to the features?
    The names were changed to better reflect the enhanced features and benefits of the services. However, the features and benefits of the add-ons will remain the same; only the names have changed.
  3. What is Block International Incoming Calls and SMS?
    Block International Incoming Calls and SMS are features provided by M1 that allows you to generally block incoming calls and SMS from international phone numbers regardless of whether you’re in your home country or abroad.​​
  4. How does Block International Incoming Calls work?
    When you activate this service, incoming calls from foreign numbers will be blocked. However, if the caller is in Singapore and is on M1’s service using 3G, the call will go through.
    Note: Example of calls with local numbers routing from international gateways are numbers spoofed to mimic Singapore numbers which originate from overseas instead of Singapore networks
  5. How does Block International Incoming SMS work?
    Incoming SMS from foreign numbers will be blocked once you’ve activated the feature.
  6. Why would I want to use Block International Incoming Calls and SMS?
    With these features, you can now block off and avoid unsolicited overseas international incoming calls and SMS from foreign numbers when you're in Singapore or when you are travelling abroad. It's also useful for reducing potential scams or spam calls/text messages.​ ​
  7. How do I activate Block International Incoming Calls and SMS?
    You can activate these features via My M1+ app, during a new postpaid mobile line application, or when re-contracting either online or at an M1 Shop.​
  8. While Block International Incoming Calls is active, can I still make overseas calls? Similarly, with Block International Incoming SMS active, can I send SMS to overseas numbers?
    Yes, you can when these services are active. It only blocks incoming calls and SMS from international numbers. When these features are active, you can still make calls and send SMS as it only blocks incoming calls and SMS from international numbers.
  9. Are there costs associated with using Block International Incoming Calls and SMS feature?
    This service is FREE of charge till further notice.
  10. Can I activate Block International Incoming Calls and SMS temporarily for a trip and then deactivate it when I return home?
    Yes, you can activate and deactivate theses services as needed. It's a flexible feature for travellers who want to manage overseas incoming calls and SMS during their trips.