Multi Tech Equipment MTA128ST manual Ppp/Mlppp

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PPP/MLPPP

for a relatively long period of time (long Low Threshold Sampling Period [S62] with a small Low Throughput Threshold [S63]).

If data transmits or is received in bursts and the TA adds and removes a channel too quickly, increase the High Threshold Sampling Period (S60) and the Low Threshold Sampling Period (S62) and

– decrease the Low Throughput Threshold (S63).

Call Bumping (S-register S64)

Call Bumping is not available to the host TA if Dynamic Bandwidth Allocation is disabled (S59=0) or if the Dynamic Bandwidth Allocation scheme is PPP (S59=2).

If the analog device goes off-hook or there is an indication of an incoming analog call and both B- channels are in use by a data call, the TA drops the second B-channel and rings the analog device.

If the analog device goes on-hook or the peer disconnects the analog call, the TA adds the second B-channel again according to whether BOD is enabled or disabled (S60). If BOD is disabled (S60=0), the second channel is added immediately. If BOD is enabled (S60 is non-zero), the second channel is added after the High Threshold Sampling Period (S60) and High Throughput Threshold (S61) determine whether throughput is high enough to allow adding the second channel.

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Contents Page Revision Date Description Model MTA128ST/NT S000305C Rev. CTrademarks Contents Introduction and Description Product DescriptionFeatures Spid Service Profile IDIsdn BRI Line NT1 ConnectionInterlace Pin TE SignalPin LED Indicators LED P1 LED P2 LED Switch Compatibiltiy LED IndicatorsCommand Interface ConnectorsSafety Warnings Hardware InstallationConnecting your TA Connect the TA to Your PC RS-232 Connection Configuration Utilities Network ConfigurationIntroduction Before You StartCall Control Configuration Voice TEICOM Port Settings Dialing NumbersDCD Drop Time Configuring your TA Page Page Page Page Page Page Page Page MTA128S T/NT Commands and S-Registers AT CommandsAT Commands by Function Digital Data Call Commands a Analog Pots Call CommandsRegisters Register SummaryAT Commands, S-Registers, and Result Codes Using AT Commands to Operate the MTA128ST/NT Result CodesMaking a Call Answering a CallAnswering Manually Hanging UpAnswering Automatically Troubleshooting the TA Specific Troubleshooting SituationsTroubleshoot ing IntroductionDebugging/Logging/Troubleshooting Commands Debugging/Logging/Troubleshooting S-RegistersNone of the LEDs light when the MTA128ST/NTis on Debugging/Logging/Troubleshooting Command Summary ATMTA128ST/NT does not respond to commands MTA128ST/NT dials but cannot make a connection You can place data calls but not voice calls or vice versaMTA128ST/NT cannot connect when answering You cannot place two simultaneous data callsMTA128ST/NT disconnects while online File transfer appears slower than it should beApple Macintosh Compatibility Bonding Using the &, I and + Characters Making PPP/MLPPP ConnectionsSoftware Applications that can Format PPP Data Dynamic Bandwidth Allocation DBADBA Features Bandwidth-on-Demand BOD-S60, S61, S62, and S63 DBA Data ProtocolsPPP/MLPPP Warranty Warranty, Service, and Tech SupportRepair Procedures for U.S. and Canadian Customers Replacement Parts Repair Procedures for International DistributorsQuick Setup Factory Profiles AppendixAConfiguration ProfilesQuick Setup Example Appendix B Ordering Your Isdn Li ne Bearer ServiceLoop Qualification Using Isdn Ordering Codes IOCs Capability S previously Generic Data M J3 previously Generic Data J-1DNM5 previously Generic Data M-1DN Ordering Isdn Without IOCs Appendices Appendices AppendixC FCCand Canadian Regulation FCCCanadian Limitations Notice AppendixD Configuration Methods Firmware-based Configuration UtilityConfiguration via AT Commands Using AT Commands to Configure the MTA128ST/NTSymbol GlossaryGlossary IETFInternet Engineering Task Force PPPMultilink Protocol or MP-is an Internet Glossary TA-Seeterminal adapter Information pages from a central resource. See also Isdn Index Canadian Regulation 56 AppendixUart