I came across an interesting piece of public research from Analysys that focuses on Fixed to Mobile substitution, aka as FMS. The graph below describes the rising share of mobile calls as a percentage of the total calls.
But what is interesting is that they specify that there is a fairly wide spread across the European region, ranging from 18% in Germany to 70% in Finland. That is the surprising part. Germany is THE country of FMS, with O2, Vodafone and T-Mobile having launched home zone solution. Their figures are from Q1 2006, so I would expect that in Q1 2007, that percentage has shot up. Also, only 35% of voice calls are originated from a mobile network, this clearly showing that FMS has a lot of potential for growth.



