Eicon Technology DIVA T/A ISDN Modem Reference Manual page 19

AT!V3=n V.110 Parity (International version only)
AT!V4=n V.110 Stop Bits (International version only)
AT!V5=n V.110 Flow Control (International version only)
AT!X1=n Specifies the X.25 version you are using.
AT!X2=n Specifies the X.25 DTE address.
AT!X3=n Specifies the X.25 facilities that are to be included each time a call is made.
AT!X4=n Specifies the local ISDN prefixes to be used.
AT!X5=n Specifies the X.25 default window size.
AT!X6=n Specifies the X.25 maximum window size
AT!X7=n Specifies the X.25 default packet size
AT!X8=n Specifies the X.25 maximum packet size
AT!X9=n Specifies the Terminal Endpoint Identifier used for X.25 over the D-channel.
AT!X10=n Specifies the delay before opening 1st B-channel
AT!X11=n Specifies the 1st B-channel Opening Threshold
AT!X12=n Specifies the 1st B-channel Closing Threshold
AT!X13=n With BACP disabled, specifies the 2nd B-channel Retry Delay.
AT!X13=n With BACP enabled, specifies the delay before opening 2nd B-channel.
AT!X14=n Specifies the 2nd B-channel Opening Threshold
AT!X15=n Specifies the 2nd B-channel Closing Threshold
AT!X16=n Strips the area code from phone numbers.
AT!X17=n Specifies the X.25 transmit queue threshold.
AT!X18 Set Normal Mode for Bandwidth on Demand.
AT!X19 Set Economy Mode for Bandwidth on Demand.
AT!X20 Set Performance Mode for Bandwidth on Demand.
AT!X21=n Specifies the Lowest Logical Connection Number.
AT!X22=n Specifies whether the AO/DI feature is enabled or disabled.
AT!X25=n Specifies how many Logical Connection Numbers (LCN) are used.
AT!X26=n Specifies the contents of the user data field in the X.25 Call Request packet.
AT!X56=n Delay between 64K data call failure and 56K data call attempt.
Alphabetical List of Supported AT Commands
DIVA T/A ISDN Modem Reference Guide N Page 19
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