How to be an SMS reseller?

[spider]

Hi Guys,

This is Prasan from Bangalore. My company needs to start an SMS reselling business by purchasing bulk SMS capacity from a telecom operator like AirTel, Vodafone or Tata Indicom which will be used for futher reselling. Do any of you have an idea how to go about that?

What are the softwares used for this purpose? I need one which doesn't require me to connect the PC to mobile phone, i.e. SMSes have to be sent across the internet.

Any quick response is highly appreciated. Thanks on advance!!!!!