XM1240S AT Command Reference Manual
No. XM1240S-A00-106
xmodus swiss GmbH
37 / 46
6. X.31 CALL SETUP
6.1 Setup outgoing X.31 call
The dial command ATD directs the modem to activate the isdn link, dial according to
the string entered and attempt to establish a X.31 connection according to the
parameters supplied. The dial modifier <space> can be freely inserted in the dial
string; it have no influence on the dial procedure of the modem. Any character sent to
the modem, while the modem is dialing will cancel the dial procedure.
ATD <num>
X
[
P
n,] [
R
,] [
N
<pwd>,] [
G
<cug>,] [
H
<num>,] <X25num> [
D
<data>]<cr>
X.25 / X.31 Call Setup Parameters
<num>
Call-number for a dialed B-Channel connection or the
X.25 number for X.31 D-Channel.
X
Starting header of the X.25 parameter section.
P
Selects the packet size n for a X.25 connection .
(values from 64 - 2048)
R
Requests the reverse charging facility.
N
NUI password used with call setup.
Allowed characters are: a-z, A-Z, 0-9.
G
Initiates access to a X.25 closed user group
H
Reports own X.25 number <num> for outgoing calls.
Maximum length of the number is 15 digits.
O
Outgoing call from X.25 closed user group
<X25num>
Dialed X.25 call number, only for X.25 B-Channel.
Maximum length of the number is 15 digits.
D
User data without protocol ID. Data length is at most
16 characters (just lower case).
P
User data with protocol ID (“01000000“). Data length
is at most 12 characters.
NOTE:
In case of X.31 D-Channel calls, the configured own X.25 address will be compared
to the X.25 address of the local X.25 access point. If they are different, the X.25
packet handler will use its own configured X.25 number.
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