Smart residential community (SRC) is an IoT-based approach for residents to acquire safe, comfortable and convenient living conditions in a residential community. SRC can provide community property management, safety control and other integrated third-party services for residents, public facilities, and enterprises. This Recommendation presents the key components and specifies requirements and the functional architecture of SRC.

Consented Recommendation ITU-T Y.4556 attracted two Last Call comments. After discussion at the ITU-T Study Group 20 plenary on 18 April 2019, and under the provisions of Recommendation ITU-T A.8, clause 5.2, paragraph 2, it was decided to change the Approval procedure from AAP to TAP.