Standard No.:	GB/T 15845.4-2003
English Name:	Performance requirements of audiovisual terminals - Narrow-band audio visual system and terminal equipment
Chinese Name:	视听用户终端技术要求 窄带视听系统和终端设备
Chinese Classification:	M32    Data communication equipment
Professional Classification:	GB    National Standard
ICS Classification:	33.160.60 33.160.60    Multimedia systems and teleconferencing equipment 33.160.60
Issued by:	AQSIQ
Issued on:	2003-1-17
Implemented on:	2003-8-1
Status:	valid
Superseding:	GB/T 15845.4-1995 Performance requirements of audiovisual terminals--Narrow-band visual telephone systems and terminal equipment
Language:	English
File Format:	PDF
Word Count:	10000 words
Price(USD):	300.00
Delivery:	via email in 1~3 business day

GB/T 15845的本部分规定了窄带视听系统和终端设备的技术要求。对于可视电话的视听业务的要求在建议F.720中规定，对于会议电视的视听业务的要求在建议F.702中规定。音频编码、视频编码以及其他一些属于视听业务的公共部分的技术要求在H.200/F.720系列建议中的其他建议中规定。
本部分适用于窄带视听系统和终端设备，该类视听设备业务的信道速率不超过1920kbit/s。