Research and Markets has announced the addition of the "UK Hosted IP Voice Forecast 2007-12" report to their offering. This report is designed to provide a quantitative analysis of the UK‘s Business VoIP market over the next 5 years. The report details the changes in subscriber numbers, the revenue generated and the factors that lead to these changes. The analysis focuses primarily on the changes to the subscriber base i.e. the numbers of non-consumer hosted VoIP telephony customers within the UK. These =subscribers‘ are acquired through two processes; the first is the replacement of traditional PSTN services/ acquisition of new Greenfield sites, and the second is the migration from traditional TDM based Centrex to IP Centrex.