HS X.25 is a software library in C (supplied with full
source code) which implements ITU-T recommendation
X.25 - Interface between Data Terminal Equipment (DTE)
and Data Circuit-terminating Equipment (DCE) for
terminals operating in the packet mode and connected
to public data networks by dedicated circuit. HS X.25
incliudes RFC1613 Cisco XOT protocol for X.25 over TCP
applicaitions.

HS X.25 internally at a lower layer interfaces to HsDL
library. HsDL library is Data Link layer abstraction.
When HS X.25 is ported into environment with LAPB or
LAPD as data link layer, only HsDL module needs to
change.

HsDL links directly to HsSock module (also included in
this package) - Winsock interface component that
provides reliable TCP transport services similar to
LAPB / LAPD / HDLC.

HsX25 as provided to customer may be used immediately

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