標準號：ISO/IEC 20113-2004
中文標準名稱：信息技術.系統間遠程通信和信息交換.專用綜合服務網.規范、功能模型和信息流.呼叫請求補充業務
英文標準名稱：Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Make call request supplementary service
標準類型：M11
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：M11
國際標準分類號：33.040.35
適用范圍：This International Standard specifies supplementary service Make Call Request (SS-MCR), which is related,but not limited, to various basic services supported by Private Integrated Services Networks (PISNs). Basicservices are specified in ISO/IEC 11574.The supplementary service MCR enables a Requesting User to request a Co-operating User to establish anew Requested Call to a Destination User. This new Requested Call between the Co-operating andDestination User can be either a Basic call or call independent signalling connection.Service specifications are produced in three stages, according to the method described in ETS 300 387. ThisInternational Standard contains the stage 1 and stage 2 specifications of SS-MCR. The stage 1 specification(Clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification(Clause 7) specifies the functional entities involved in the supplementary service and the information flowsbetween them.