ECMA 202 : 2ED 97现行
PRIVATE INTEGRATED SERVICES NETWORK (PISN) - SPECIFICATION, FUNCTIONAL MODEL AND INFORMATION FLOWS - CALL INTRUSION SUPPLEMENTARY SERVICE (CISD)
出版：European Computer Manufacturers Association
专家解读视频
基本信息
标准编号： ECMA 202 : 2ED 97
标准类别：Standard
出版单位：European Computer Manufacturers Association
标准页数：0
标准简介
Defines the Call Intrusion supplementary service (SS-CI) applying to various basic services supported by Private Integrated Services Networks (PISNs). This is a supplementary service, enabling, on request from the service user, establishment of communication between a busy called user (user B) by breaking into an established call between user B and a third user (user C).
