scope:

The present document defines the stage 1 service description of the Network Address Book service on fixed network independent of the technology. Stage 1 is an overall service description, primarily from the service provider and user's point of view, but does not deal with the details of the human interface itself.

The present document includes information applicable to service providers and equipment manufacturers

The present document contains the description of the core service features and also optional service features within the Network Address Book Service. The service may be provided on the basis of the core requirements alone. Furthermore, additional functionalities not covered in the present document may be implemented.

Charging principles are outside the scope of the present document.