This Recommendation specifies requirements and capabilities of next generation network (NGN) evolution for supporting authorized account messaging service, in order to enable a NGN end user to subscribe a profile of the entity (third-party provider) for accessing the information via messaging exchange.

This Recommendation introduces a basic scheme and business roles for authorized account messaging service support in NGN evolution, and it also specifies the requirements and the capabilities of authorized account messaging service in NGN evolution.

Relevant scenarios for authorized account messaging service are provided in Appendix I.