ential high volume service: The M2M market is untapped. There are 100 million households and homes in Europe alone and over 500 million cars worldwide with 50 million new cars sold every year. There are three million elevators and four million alarm systems in Europe - and 10 million vending machines in the world. The turn from narrowband to broadband is clear. It can schematically be illustrated by Figure 4.38. UK market size 1998 UK market sizes 2010 UK market sizes Total £20.3B Total £42B Mobile Fixed Voice Source: Arthur D. Little Note: Figures nominal, assumed 3% inflation Figure 4.37 A forecast from the UK Understanding Changing Telecommunications - Building a Successful Telecom Business Revenue per customer Broadband packet Narrowband circuit switched Mobile Narrowband packet Figure 4.38 Turn from narrowband to broadband - trend in revenue expectations per customer Where is the money? Revenue breakdown end customer (WE) Telephony revenue Datacom revenue SME/SOHO Large enterprises account for ~80% of the datacom revenue Big datacom business potential with SME, SOHO & residential customers Figure 4.39 Revenue from enterprises (LE in this particular context = large enterprises). Source: SCB (Statistiska Centralbyrän), Sweden The large enterprises are the main source of datacom revenue. See Figure 4.39. For narrowband circuit-switched services the revenues per customer are decreasing, mainly because of the price pressure on the tariffs. 4.6.2 INTERCONNECT, ROAMING, MULTI-TERMINALS AND LEASING (REVENUE AND COST) What is interconnect? Figure 3.40 gives a part of the answer. For all types of interconnect there is a need for a point of interconnect (POI). The responsibility for POI creation and maintenance is agreed between the interconnecting actors. But there is a need to define a lot more conditions between the actors such as billing, network management, QoS, Telecom Business Operator Operator Point of interconnect (POI) Who bills A-Operator 1 or Operator 2? How much does Operator 1 pay Operator 2 for deliverin