AC International MTA128ST-USB manual S63, S64, S65

Page 66

MultiModemISDN User Guide

S-register:

S63

Function:

Bandwidth-on-Demand Low Throughput Threshold

Unit:

Kbps

Range:

n=0–64 (Kbps)

Default:

26 (26 Kbps)

Description: Sets BOD Low Throughput Threshold, which determines whether second

 

channel should be disconnected due to low throughput. Refer to the BOD

 

description and how the Low Throughput Threshold (S63) and Low

 

Threshold Sampling Period (S62) determine when second channel should be

 

disconnected. By default, the average throughput during the Low Threshold

 

Sampling Period (S62) must be equal to or less than 26 Kbps.

S-register:

S64

 

Function:

Call Bumping (CB)

Unit:

Decimal ASCII code

Range:

n=0

Disable

 

n=1

Enable

Default:

1 (Enable)

Description:Enables the Call Bumping feature of Dynamic Bandwidth Allocation. With

 

Call Bumping disabled, incoming and outgoing calls are not possible if both

 

B-channels are already in use. With Call Bumping enabled, incoming and

 

outgoing analog calls through the POTS port are possible even if both B-

 

channels are in use. If the TA is acting as a host device, Call Bumping is

 

available to the host TA only if MP+ (S59=1) was negotiated by both the

 

client and the host. Also, Call Bumping is not available to the host TA if the

 

Dynamic Bandwidth Allocation scheme is MP+ (S59=1) and MP+ negotiation

 

fails. If MP+ negotiation was successful (meaning both client and host

 

support MP+), Call Bumping is available to the host TA. By default, Call

 

Bumping is enabled.

 

Note: If using the TA as a host for MultiLink PPP calls with the MP+ Dynamic

 

Bandwidth Allocation scheme (S59=1), Data DN/MSN 2 must be entered.

S-register:

S65

Function:

POTS Call Bump Forwarding Delay

Unit:

5 ms

Range:

n=0-255 (0 ms to 1275 ms)

Default:

20 (100 ms delay)

Description: Allows the forwarding delay time to be adjusted. Some central office switches are not able to accept another call immediately after tearing down a call (meaning the TA is able to tear down a call and initiate another call much faster than the central office). If the central office switch is too slow, then a Call Bump (due to an incoming or outgoing analog call) will not be recognized and the analog device will not ring (if incoming) or will not give a dial tone (if outgoing). A delay of 100 ms is the default, which should allow enough time for the central office switch to prepare for new calls.

S-register: S66

Function: Country Selections for POTS Ring Signal

Unit: Decimal ASCII code

Range: n=0–27

0Default

1Custom single

2Custom dual

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Contents User Guide User Guide Contents Troubleshooting Introduction and Description Universal Serial Bus USB IntroductionProduct Description MultiModemISDN User GuideManual Organization Introduction and DescriptionFeatures Technical Specifications LED IndicatorsHardware Installation Safety Warning Telecom/ISDN-ST Hardware InstallationUnpacking Your MTA128ST-USB Connecting the MTA128ST-USB to Your System Assembling the MTA128ST-USBMultiModem Isdn User Guide Connecting to Your Isdn Network Terminator Connecting to Your ComputerConnecting to Power Connecting to Analog EquipmentLED Indicators Hardware Installation Data Protocol ReferencesSoftware Installation and Configuration Installing in Windows Software Installation and ConfigurationInstall Hardware Device Drivers dialog box displays If the Digital Signature Not Found dialog box displays Page Upgrade Device Driver Wizard dialog box displays Changing the Modem Descriptor WindowsMTA128ST-USB CDC ML-PPP Properties dialog box displays Start Device Driver Installation dialog box displays Installing in Windows Software Installation and Configuration MultiModemISDN User Guide Update Device Driver Wizard dialog box displays MTA128ST-USB ML-PPP Properties dialog box displaysUpgrade Device Driver Wizard dialog box displays Software Installation and Configuration Click Start Settings Control Panel Removing Your Old Device from Windows 2000 and Windows 98Configuration Network ConfigurationCall Control Configuration AT commands AT!C6= and AT*!C6=AT commands AT!N1= and AT*!N1= Dialing Stored Numbers Isdn MTA128ST-USB Configuration Utility To Install in Windows 2000/98/95Windows 2000 Dial-Up Networking MultiModemISDN User Guide If you select Accept incoming connections MultiModemISDN User Guide Windows 98/95 Dial-Up Networking MultiModemISDN User Guide AT Commands Using AT Commands to Configure the MTA128ST-USBAT Commands, S-Registers and Result Codes Entering AT Commands AT Commands, S-Registers, and Result CodesAT Commands by Function Command ImplementationData Call Commands A97=1 A97=nA97=0 C0=2 Net3D3=241 D3=0-63D3=240 DN=1EN=2 EN=nEN=1 D98N2=n RXGnRXG10 =12 L5 and L6Connect String normally it is issued by itself ATZ E13 E4, &E6, &E13E12 #X0MultiModemISDN User Guide ROM $DnData Call Commands Command DSn Registers Register SummaryAT Commands, S-Registers, and Result Codes MultiModemISDN User Guide S30 S31S34 S49 S44S45 S50Ring S51S17 S53S54 S18AT Commands, S-Registers, and Result Codes S58 S59S60 S61S62 S63 S64S65 S67 S68S71 S69S70 S73S75 S76S77 S80 Result Codes Modes of Operation Using AT Commands to Operate the MTA128ST-USBMaking a Call DialingAnswering a Call Hanging Up Troubleshooting None of the LEDs light when the MTA128ST-USB is on Troubleshooting MTA128ST-USB dials but cannot make a connectionYou can place data calls but not voice calls or vice versa MTA128ST-USB disconnects while online MultiModemISDN User Guide Warranty, Service, and Technical Support Limited Warranty Addendum for North American ProductsAddendum for International Products Out of Warranty Repair Costs On-line Warranty Registration Warranty, Service and Tech SupportSoftware User License Agreement MultiModem Isdn User Guide Service Technical SupportContacting Technical Support Ordering Accessories Using FlashWizard to Upgrade Firmware Upgrading the MTA128ST-USB with FlashWizardAppendixes Class B Statement FCC Part EMC, Safety, and Terminal Directive ComplianceAppendix a Regulatory Compliance Industry CanadaQuick Setup Example MultiVOIP 200 User GuideProfile 1 &F1 V.110 Asynchronous Operation Profile 2 &F2 V.120 Asynchronous Operation Profile 4 &F4 ML-PPP Asynchronous Operation Glossary Symbol GlossaryMultiModemISDN User Guide Glossary MultiModemISDN User Guide Glossary 100 101 TA- See terminal adapter102 103 Index Index 10542, 52 106Isdn MTA128ST-USB Config utility 107Rings 108
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