This discussion document sets out various analyses that Ofcom has conducted in order to assess the extent to which there is evidence of geographic variations in competitive conditions in the various leased lines product markets in the UK. Leased lines are telecommunications products that are usually used by businesses. Unlike the telecommunications networks that residential customers generally use, which have shared capacity, leased lines offer end users dedicated transmission capacity. An example of an end-user that would use a network of leased lines could be a high street bank’s network of cash machines or Camelot’s network of Lotto terminals. Leased lines support the transmission of voice and of data and data transmission is symmetrical (i.e. upload speeds are the same as download speeds).