This specification focuses on the following interface: – WAN-IF The interface between application hosting devices (AHD) and the wide area network (WAN). This interface is defined in the Continua architecture as described in clause 6 of [ITU-T H.810]

There are a number of certified device classes (CDCs) related to the WAN-IF. This Recommendation contains interoperability design guidelines that are applicable to several CDCs. Security interoperability design guidelines is one such example. In addition, this document also contains the design guidelines for the Consent enabled AHD and WAN CDCs. These CDCs may be grouped with multiple other WAN-IF related CDCs, for example, WAN observation upload or Questionnaire enabled CDCs.