Smart unli 25 promo lets the smart subscribers to enjoy unlimited call and text all day for only 25 pesos, without any required time duration. Here is the procedure on how to avail the Smart unli 25 call and text promo all day.
Smart prepaid (not sure if postpaid can avail)
To avail this promo, just text UNLI25 to 6406
Just dial *6406+Smart/TNT number (ex. *640609181234567) to make unlimited call and text all day. Valid for 1 day only.