The nature of the telecom service business is changing -- services are becoming more numerous, varied, and complex. Operators expect to sell hundreds if not thousands of services, which means service delivery may soon require a wide range of policy-based variables, including presence management, time of day, device type, subscriber permission, subscriber preference, subscriber age, location, role, billing arrangement, and many others. Operators will need to store the expanding range of parameters that can be applied to individual subscribers and check against these to see which features apply as soon as a user requests a service.
