ETSI TS 186 022-1

ETSI TS 186 022-1 Core Network and Interoperability Testing (INT); Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification (3GPPTM Release 12); Part 1: Protocol Implementation Conformance Statement (PICS)

standard by European Telecommunications Standards Institute, 07/01/2018