The document summarizes an interoperability event in 2012 that tested standards compliance for Rich Communication Suite (RCS) and Voice over LTE (VoLTE) network scenarios. The event validated key GSMA technical recommendations and was conducted across two test labs connected via IPX network. A total of 210 test cases were run across scenarios for RCS/VoLTE in a single network and for roaming and interconnect. The results demonstrated interoperability of the GSMA specifications based on 3GPP standards.