User`s guide

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X.28 Commands
Once an X.25 session layer has been established the unit switches to “PAD” mode. In this
mode operation of the PAD is controlled using the standard X.28 PAD commands listed in
the following table:
Command
Description
CALL
Make an X.25 call
CLR
Clear an X.25 call
ICLR
Invitation to CLR
INPAR?
List X.3 parameters of specified PAD instance
INPROF
Load or save specified PAD profile
INSET
Set X.3 parameters of specified PAD instance
INT
Send Interrupt packet
LOG
Logoff and disconnect
PAR?
List local X.3 parameters
PROF
Load or save PAD profile
RESET
Send reset packet
RPAR?
List remote X.3 parameters
RSET
Set remote X.3 parameters
SET
Set local X.3 parameters
STAT
Display channel status
CALL Make an X.25 Call
The full structure of a CALL command is:
CALL [<facilities->]<address>[D<user data>]
where:
<facilities-> is an optional list of codes indicating the facilities to be requested in the
call (separated by commas, terminated with a dash)
<address> is the destination network address.
<user data> is any optional user data to be included with the call.
The facility codes supported are:
F Fast select - no restriction
Q Fast select - restricted response
Gnn Closed User Group
Gnnnn Extended Closed User Group
R Reverse charging
N<NUI> Network User Identity code (NUI)