hi,
i need an sms software or script for my website from which my visitors can send sms to any country free of cost.i dont need sites like sms.ac and others who charge for credits.i need to build my own site like sms.ac but i will give my visitors free ms without any cretis hassels.
what should i do i have discussed with few people but i dont understand what is gateway what they talk abt.i just need a script where my visitors can send sms to anywhere.
should i take special permissions from the mobile operators for sms or what please help me as soon as possible.

-santosh.p