To start a call center, firstly you must identify a market that you want to explore, domestic/international as the technology requirement for both would be different. Secondly every call center in today’s time have to build a reputation and experience, no client would give their important inbound business unless you have enough experience in the call center industry, or else if you have deep pockets then perhaps you can hire a very good experience top management. The gestation period in this industry with present business scenario is about 1-3 years. The number of seats that you want to start with would depend upon the business that you are getting, however if you want to remain in this business for long then you need to be capable to scale up as well. every call center in India started small and got scaled up over a period of time. you need to have enough, investment, patience, experience and capabilities to do so.