Core Network and Interoperability Testing (INT); Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance test specification; (3GPPTM Release 12); Part 1: Protocol Implementation Conformance Statement (PICS) (V3.1.1)
The present document provides the Protocol Implementation Communication Hold (HOLD) services@ based on stages one and two of the ISDN Hold (HOLD) supplementary services defined in ETSI TS 124 610 [1] in compliance with the relevant requirements@ and in accordance with the relevant guidance given in ISO/IEC 9646-7 [4] and ETSI ETS 300 406 [2].