Eicon Networks DIVA T/A ISDN Modem AT!X18, Defined as follows, Limit of the range is 4095-4 =

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Always On / Dynamic ISDN AT Commands

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.

 

 

 

 

 

DIVA T/A ISDN Modem Reference Guide ◆ Page 52

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Contents Diva T/A Isdn Modem Reference Guide Eight Edition July 206-193-08 Contents What is ISDN? Diva T/A Isdn Modem Reference GuideWhat is ISDN? Isdn Communication Channels ChannelChannel Connecting to Isdn BRI and PRI Basic Rate AccessWhat is Multilink PPP? What is BACP/BOD? What is DBA? What is Always On / Dynamic Isdn AO/DI? What is Data Compression? Locating AT Commands Locating AT Commands AT Command Groups Alphabetical List of Supported AT Commands AT! Commands Alphabetical List of Supported AT CommandsAlphabetical List of Supported AT Commands AT% Commands AT& Commands AT* Commands AT Commands AT@ Commands Other AT Commands Registers AT$ Utility Commands Mini-monitor Commands General AT Commands General AT Commands Defaults Isdn Configuration CommandsValues for n Isdn Configuration Commands None default Default1INS-Net64, NI-1, or 5ESS, µ law will be used default AT!D3=nDefault null string this is an optional value AT!N2=nNumber. Numbers are separated by a semicolon AT!N3=nAT!X56=n For more details, refer to the Rvscom documentationOn region 255 do not attempt 56k data call retry COM Port Configuration Commands COM Port Configuration Commands RingFor example, Connect Upon connection, the Diva T/A reports the DCE speedCall Control Commands Call Control Commands ATAATH Configuration Commands Configuration Commands Use the default settings AT!V0=nProfile Commands Multilink PPP Commands Multilink PPP Commands AT%M3=b3c665ac11 Endpoint Discriminator Class/AddressInternet Protocol IP Always On / Dynamic Isdn AT Commands Always On / Dynamic Isdn AT Commands AT!X13=n when Bacp is disabled, see Will be opened after the delay specified by AT!X10Default 1000 bytes AT!X14=nDefault values for each setting, and is defined as follows Default AT!X22=nAT!X18 Defined as followsDefault CF PPP over AT!X25=nConnection numbers affects the range ofAT!X21. SeeAT!X21 AT!X26=nUtility Commands Utility Commands Internal TA access command reserved for VUStart or display the Result of a Lapd trace Start or Display the Result of a PPP traceSoft reset the unit and enter the monitor Enter the monitor on the next resetStart an AO/DI X.25 Trace Register Commands AT?Register Commands Analog Device Commands Analog Device Commands AT*FnTo be disabled Disable. Recommended for modem/fax callsEnable with default values default Enable using same terminal endpoint identifier as data portMini-monitor Commands AT Command Result Codes Connect AT Command Result CodesCarrier Connect Protocol Transparent Mode Connect 75T/1200RConnect 1200T/75R Protocol NoneIndex BACP/BOD
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