Cut'n'paste crazy but this is what QSIG IP Office is supposed to support across trunks (including IP trunks).
IP Office Release supports the following QSIG services across digital and IP connections:
• Message Waiting Lamp Signalling
• Calling Name Identity Presentation (CNIP)
• Connected Name Identification (CONP)
• Basic Call Setup
• Calling Line Identification Presentation
• Connected Line Identification Presentation (CLIP)
• Connected Line Identification Presentation (COLP)
• Desk-to-Desk Dialing
• Call Hold
• Call Transfer
IP Office fully supports the following QSIG features:
Basic Call (QSIG-BC) as defined by Q.931, ECMA-142/143, EN 300 171/172, ISO/IEC 11574/11572 and H.225.0
Identification Supplementary Services - Calling and Connected Number Transport (ISSD or SS-CLIP, SS-COLP and SS-CLIR) as defined by ECMA-148, EN 300 173, ISO/IEC 14136 and H.450.8
Generic Functional Procedures (QSIG-GF) as defined by ECMA-165, ETS 300 239,ISO/IEC 11582 and H.450.1
IP Office supports the following services, as required for the implementation of specific functionality of device interoperability:
Calling/Connected Name Identification (QSIG-NA or SS-CNIP and SS-CONP) as defined by ECMA-163/164, ETS 300 237/238, ISO/IEC 13864/13868 and H.450.8; some callingName, calledName and connectedName operations
Call Deflection (QSIG-CF or SS-DIV) as defined by ECMA-173/174, ETS 300 256/257 and ISO/IEC 13872/13873 and H.450.3; divertingLegInformation2 operation only -
subset of fields processed (implemented for QSIG-AUDIX call diversion only)
Call Transfer (QSIG-CT or SS-CT) as defined by ECMA-177/178, ETS 300 260(Ed2)/261(Ed2), ISO/IEC 13865/13869 and H.450.2; callTransferIdentity and callTransferInitiate only
Call Hold (SS-HOLD) as defined by ETS 300 141 and H.450.4; remoteHold and remoteRetrieve only
Message Waiting Indication (QSIG-MWI or SS-MWI) as defined by ECMA-241/242, ETS 301 260/255, ISO/IEC 15505/15506 and H.450.7; mWIActivate/mWIDeactivate operations only - no optional fields processed