Call centres handle large volumes of telephone and other customer communications on behalf of businesses and organisations. Their work may involve answering incoming calls, making outbound calls, or combining both. Some centres operate as part of an organisation's own customer service team, while others provide outsourced services for clients in sectors such as retail, utilities, finance and public services. Typical services include responding to product and account enquiries, taking orders, arranging appointments, processing payments, recording complaints and providing technical support. Outbound teams may conduct market research, confirm details, make service-related calls or carry out sales campaigns. Staff generally use customer relationship management and call-handling systems to record interactions and direct callers to the appropriate team. Support may also be provided by email, web chat or social media, alongside telephone services.