ITU-T X.39-1996
在传真分组装/拆(FPAD)设施和分组式数据终端设备(DTE)或另一个FPAD之间交换控制信息
Procedures for the Exchange of Control Information and User Data between a Facsimile Packet Assembly/Disassembly (FPAD) Facility and a Packet Mode Data Terminal Equipment (DTE) or Another FPAD - Series X: Data Networks and Open System Communication Public