Ofcom undertakes research on the availability and experience of communications services for small and medium enterprises (SMEs) in the UK, defined as businesses with fewer than 250 employees. A survey of 1501 SMEs (0-249 employees) was undertaken using CATI (computer aided telephone interviewing). The survey data were weighted to be representative of the SME universe on size. Fieldwork took place between 9 May and 18 July 2016.