“Network Priority Booster" is available to any SmarTone customers who have subscribed to a designated 5G mobile monthly plans.

"Network Priority Booster" is only applicable to the monthly local data allowance of designated 5G mobile monthly plans and extra top-up local data. When the monthly local data allowance of designated 5G mobile monthly plans has been reached, the "Network Priority Booster" service will also be suspended until the next bill month and will only be resumed once the Customer purchases data top-up options. However, “Network Priority Booster” service is not applicable to “Unlimited Local Data”.

"Network Priority Booster" is applicable to local data only, and not overseas roaming data.

Yes. There is no need for add-on SIM users to subscribe through main SIM users.