To protect you from frustrating and potentially risky international calls and SMS, including scams and spam, we've implemented enhanced controls. You now have the power to block or allow these incoming communications in ZYM Mobile App.

To access the new feature, please ensure you have the latest version of the ZYM Mobile App.

See video tutorial here

This is a required step in the SIM activation process for new customers to specify their preference for allowing or blocking incoming international calls and SMS. For existing customer it is optional.

Rest assured, blocking incoming international calls and SMS will not prevent you from making outgoing international calls or sending international SMS.

However, do take note that you are required to purchase a IDD add-on to make an outgoing international call from Singapore.

Yes, blocking international calls and SMS will block all incoming communication from international numbers to your ZYM (Singapore) number, regardless of your location

No, this feature is provided free of charge.

Sure, please refer to the tutorial: https://youtube.com/shorts/fnR83xNVwlE.

While the setting typically takes effect immediately, please allow a few minutes for it to fully apply.

Once you've set a new preference, you'll need to wait 24 hours before making any further changes.

You may receive an email confirmation of the change.

To complete SIM card activation, you are required to choose whether to allow or block international calls and SMS. The default setting is to allow international calls and SMS.

Resellers can assist with setting updates during initial sign-up only. Subsequent changes must be made by you via the ZYM Mobile App. Refer to the tutorial: https://youtube.com/shorts/fnR83xNVwlE

Yes, you can change the setting later through the ZYM mobile app once your account is active. Refer to the tutorial: https://youtube.com/shorts/fnR83xNVwlE

This is unexpected. Before contacting ZYM Customer Care, please verify your settings in the ZYM Mobile app: Login > Tap Profile > International Communication Preference > Check the setting for your number. If it's not set to 'Block,' you can change it there.

This is unexpected. Before contacting ZYM Customer Care, please verify your settings in the ZYM Mobile app: Login > Tap Profile > International Communication Preference > Check the setting for your number. If it's not set to 'Allow,' you can change it there.