i need a sms script tht works with all indian carriers and allows mass messaging (say anywhere from 100-5000 people at a time)
I wrote a PHP class that can handle SMS sending through TM4B's API. I never tried sending anywhere as much as you're trying to send though. But I could imagine there's no problem. http://www.bytemycode.com/snippets/snippet/647/ You need an account on www.tm4b.com - And you have to pay for each SMS. You most likely won't find anything free if that was your intention. (India is supported)