Content or value based charging is to charge an end-user based on the variable value of a used service rather than on time used or flat rates. This can be used, for example, when downloading music video clips. Different contents can be charged at different rates, i.e. music contents 30 TK/minute, news contents 20 TK/minute etc.
Subscription charging is applied for regular subscription based services. Users can subscribe for a service for a specific modality. Here Subscription Based Modality means users can subscribe for a service monthly/bi weekly/weekly/daily and charge accordingly. Different modalities have different charging rates. When the user is subscribed to a service, the system treats the user as a registered user and sends service specific content to that user and the user can get the service.