Definition of handshake protocol for use between pads and between the pad and DTE.
The CCITT recommendation that specifies the user interface between a DTE and a remote packet assembler/disassembler (PAD).
ITU-T recommendation defining the control packet format between the PAD and remote computer regarding the virtual terminal parameters and changes in their values. [PAD] Return
a protocol defining the control packet format between the PAD and remote host regarding the virtual terminal parameters (the X3 parameters) and changes in their values. X29 uses packets defined by X25.