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Always On / Dynamic ISDN AT Commands
DIVA T/A ISDN Modem Reference Guide
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Page 52
AT!X18
Set Normal Mode for Bandwidth on Demand.
Sets the Bandwidth on Demand
thresholds and delays to pre-configured values. ‘Normal Mode’ is equivalent to the
default values for each setting, and is defined as follows:
AT!X10=5 Sets ‘Delay before Opening 1st B-channel’ to 5 seconds.
AT!X11=70 Sets ‘1st B-channel Opening Threshold’ to 70 seconds.
AT!X12=40 Sets ‘1st B-channel Closing Threshold’ to 40 seconds.
AT!X13=5 Sets ‘Delay before Opening 2nd B-channel’ to 5 seconds.
AT!X14=70 Sets ‘2nd B-channel Opening Threshold’ to 70 seconds.
AT!X15=40 Sets ‘2nd B-channel Closing Threshold’ to 40 seconds.
AT!X17=1000 Sets the ‘X.25 Transmit Queue Threshold’ to 1000 bytes.
AT!X19
Set Economy Mode for Bandwidth on Demand
. Sets the Bandwidth on Demand
thresholds and delays to pre-configured values. ‘Economy Mode’ is defined as
follows:
AT!X10=20 Sets ‘Delay before Opening 1st B-channel’ to 20 seconds.
AT!X11=80 Sets ‘1st B-channel Opening Threshold’ to 80 seconds.
AT!X12=60 Sets ‘1st B-channel Closing Threshold’ to 60 seconds.
AT!X13=60 Sets ‘Delay before Opening 2nd B-channel’ to 60 seconds.
AT!X14=60 Sets ‘2nd B-channel Opening Threshold’ to 60 seconds.
AT!X15=80 Sets ‘2nd B-channel Closing Threshold’ to 80 seconds.
AT!X17=2000 Sets the ‘X.25 Transmit Queue Threshold’ to 2000 bytes.
AT!X20
Set Performance Mode for Bandwidth on Demand
. Sets the Bandwidth on
Demand thresholds and delays to preconfigured values. ‘Performance Mode’ is
defined as follows:
AT!X10=1 Sets ‘Delay before Opening 1st B-channel’ to 1 second.
AT!X11=50 Sets ‘1st B-channel Opening Threshold’ to 50 seconds.
AT!X12=20 Sets ‘1st B-channel Closing Threshold’ to 20 seconds.
AT!X13=1 Sets ‘Delay before Opening 2nd B-channel’ to 1 second.
AT!X14=60 Sets ‘2nd B-channel Opening Threshold’ to 60 seconds.
AT!X15=80 Sets ‘2nd B-channel Closing Threshold’ to 80 seconds.
AT!X17=500 Sets the ‘X.25 Transmit Queue Threshold’ to 500 bytes.
AT!X21=n
Specify Lowest X.25 Logical Connection Number
. Specifies the lowest LCN that
X.25 will use for establishing the AO/DI connection.
Range: 1 to 4095. If you specify more than 1 LCN (using AT!X25), the upper limit of the
range is 4095 minus the number of LCNs. For example if AT!X25=4, then the upper
limit of the range is 4095-4 = 4091.
Default: 1.
AT!X22=n
Enable/Disable AO/DI
. Specifies whether the AO/DI feature is enabled or disabled.
n=0 Off (default).
n=1 On.