scope:

The purpose of the present document is the definition of the necessary requirements for the Subscription Management (SuM) which is paramount for the NGN service delivery within TISPAN NGN.

The present document contains the specification of the requirements for the following:

• An end-to-end information model to cover all the mandatory/optional information related to Subscription Management (SuM) that shall be provisioned on the NGN Network.

• A Subscription Management (SuM) functional architecture which hides the complexity of the different functional entities to be configured including the CPE and the AS.

The present document is the first release of the TISPAN Subscription Management (SuM) requirements. Only Service Configuration and Activation aspects are addressed within this first release.

For the current release, configuration and customization of services by users and user's rights management, roles management are out of scope.

The requirements described in the present document including the defined information model are done according to the specifications of TISPAN R1. The present document will evolve according to new specifications in TISPAN R2.