Call center is a centralised office used for receiving or transmitting a large volume of requests by telephone. An inbound call centre is operated by a company to administer incoming product support or information enquiries from consumers. Outbound call centres are operated for telemarketing, solicitation of charitable or political donations, debt collection and market research. A contact centre is a location for centralised handling of individual communications, including letters, faxes, live support software, social media etc..  A call centre has an open workspace for call centre agents, with work stations that include a computer for each agent, a telephone set/headset connected to a telecom switch, and one or more supervisor stations. It can be independently operated or networked with additional centres, often linked to a corporate computer network, including mainframes, microcomputers and LANs. Increasingly, the voice and data pathways into the centre are linked through a set of new technologies called computer telephony integration.