Centralised service desk: Typically, organisations have moved away from local service desks to adopting a centralised service desk (Figure 24.2). Efficiency and cost-effectiveness are the reasons for this. Economies of scale can be exploited by having all of the organisation’s service desk staff in one physical location. By adopting a single telephone number, calls from anywhere in the organisation will be directed to the centralised service desk. It should not matter to the user where their call is dealt with; their only interest ought to be the way in which the call is handled.