A call center is a centralized office used for the purpose of receiving and transmitting a large volume of requests by telephone. Call centers are basically categorized as international and domestic, which are again classified into inbound and outbound. Call center operated by a company to administer incoming product support or information inquiries from consumers is said to be inbound while the one operated for telemarketing, clientele, and debt collection are outbound. International is the one where client is from a foreign country and domestic call center operates within the country.

Call center work stations generally include a computer for each agent, a telephone set/headset connected to a telecom switch, and one or more supervisor stations. The career avenues provided by call centers is one of the best suited and growing option which even a fresher can opt for. The reason why more and more foreign companies are grounding in India is that Indian has extended favorable support to the BPO sector and the onset of globalization.

Offshore call center outsourcing companies prefer India because -
  India has more English literate population
  The workforce is ready to work at low cost
  The cost of other amenities required to set up a call center are cheaply available.

As per a research 50-70% less attrition is noted in the Indian call centers and 30-35% benefits in costs are available than U.S. call centers. For setting up of call centers stable economy, business-friendly government and a telecommunications infrastructure are required. India though did not have these being a developing country has coped with these requirements at a very fast pace in the previous 10 years.

Among all software and service exports of the country call center industry accounts for a whole quarter employing 160000 professionals.