ETSI PRETS 300 483-1996 终端设备(TE).综合业务数字网(ISDN).视听业务的多点通信.多点控制单元(MCUs)的主要功能和基本要求
Terminal Equipment (TE); Integrated Services Digital Network (ISDN); Multipoint Communications for Audiovisual Services; Main Functionalities and Basic Requirements for Multipoint Control Units (MCUs)