標(biāo)準(zhǔn)號(hào)：ISO/IEC 19459-2001
中文標(biāo)準(zhǔn)名稱(chēng)：信息技術(shù) 系統(tǒng)間通信和信息交換 個(gè)人綜合業(yè)務(wù)網(wǎng) 規(guī)范、功能模型和信息流 單步呼叫傳送補(bǔ)充業(yè)務(wù)
英文標(biāo)準(zhǔn)名稱(chēng)：Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Specifications, functional model and information flows; Single Step Call Transfer Supplementary Service
標(biāo)準(zhǔn)類(lèi)型：M11
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國(guó)標(biāo)準(zhǔn)分類(lèi)號(hào)：M11
國(guó)際標(biāo)準(zhǔn)分類(lèi)號(hào)：33.040.35
適用范圍：This International Standard specifies the Supplementary Service (SS) Single Step Call Transfer (SSCT), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. SS-SSCT is a supplementary service that enables an SSCT user, user A, to transform an existing call between user A and user B into a new call between user B and a user C whereby user A does not have a call established with user C prior to call transfer. Supplementary service specifications are produced in three stages, according to the method described in ETS 300 387. This International Standard contains the stage 1 and stage 2 specifications of SS-SSCT. The stage 1 specification (clause 6) specifies the general feature principles and capabilities. The stage 2 specification (clause 7) identifies the Functional Entities involved in the supplementary service and the information flows between them.