Defines the interface between public networks providing data transmission services in the packet-switched mode. The 1988 (Blue Book) version of the Recommendation is the current official version of the X.75 interface definition.
Subsequent references to X.75 in this document will be
to the 1988 version unless otherwise stated. Adopts the international X.75 standard, with modifications and extensions to apply to interfaces between public networks within the United States.
