To register via SMS, subscriber must send AT20 to 2827.

Also available:

ALL TEXT 10: For P10, get 40 texts to SMART/TNT/red + 10 texts to all networks valid for 1 day. Available via eload only.

ALL TEXT 30: For P30, get 300 texts to SMART/TNT/red + 10 texts to all networks valid for 2 days. To register, text AT30 to 2827 or visit any SMART retailer nationwide.