There was also a good deal of provoking analysis of the business case for IMS. We have been saying for a long time that IMS can only be justified by ROI from specific services and that a piecemeal approach to deployment may make sense. This seems to be a viewed shared by many, but what was particularly useful was that several operators reported on their motivation for supporting IMS and noted that the business case requires a specific number of services to make sense. Estimates ranged from 3 – 5 individual services, but the potential to provide an environment to support multiple services through a common service enablement architecture is finally being recognised. For more discussion of the forum, please visit our blog.