Help

Hi there,
this is Ali Razvi from India.I work in software compay in Bangkok Thailand.Our company is basically into web solutions,data solutions and IT training since last 11years and we r doin quite well.We now plan to set up a voice based as well as web based call center in Thailand and India.but i guess we have very little information about how to begin.I would like to have the complete details about how to start a call center,wht r the things required wht r the legal farmalities,etc…!