
Appendix C
User Facilities and
DTE Address Structure
T
HIS
APPENDIX
DESCRIBES
USER
FACILITIES
,
AND
THE
DTE
ADDRESS
structure. User Facilities allow you to configure optional network
services such as reverse charging, accessing a Closed User Group, and
specifying a Network User Identification (NUI). Included in this
appendix is an explanation of the structure of the called-DTE and calling-
DTE fields.
The DTE address structure described here is based on CCITT
Recommendation X.25 (1988). To find out if your network differs from
these specifications or uses earlier versions of them, see your X.25
subscription or your network manager.
Also included in this chapter are X.25 and ISDN Cause and Diagnostic
Codes.
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