GB/T 15845.1-1995 Performance requirements of audiovisual terminals--Frame structure for a 64 to 1920kbit/s channel in audiovisual teleservices (English Version)
This standard specifies the transmission of audio-visual user terminal services on a single or multiple B channels (64 kbit/s) or H0 channels (384 kbit/s), or a single H11 channel (1536 kbit/s) or H12 channel (1920 kbit/s). frame structure. This standard applies to applications where a total transmission rate channel from 64 to 1920 kbit/s is dynamically divided into multiple low-rate sub-channels suitable for service transmission such as audio, video, data and telematics.
GB/T 15845.1-1995 history
1995GB/T 15845.1-1995 Performance requirements of audiovisual terminals--Frame structure for a 64 to 1920kbit/s channel in audiovisual teleservices