Multi-Tech Systems MT5634ZBA-DID manual Data Compression Reporting

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MultiModemDID User Guide

 

Chapter 4 - AT Commands, S-Registers, Result Codes

 

 

Command: +DR=n

V.44 Data Compression Reporting

Values:

n = 0 or 1

Default:

0

 

Description:

Enables or disables the V.44 data compression report. If the

 

compression report is enabled, the +DR:<type> intermediate

 

result code reports the current DCE-DCE data compression type.

 

It is issued after the Error Control Report (+ER) and before the

 

final result code (e.g., CONNECT). The intermediate result

 

code descriptions are shown after the command descriptions.

+DR=0

Disables the V.44 compression report.

+DR=1

Enables the V.44 compression report.

+DR=?

Displays the allowed values.

+DR?

Displays the current value.

+DR: NONE

Data compression not in use.

+DR: V42B V.42bis is in use in both directions.

+DR: V44

V.44 is in use in both directions.

Command: +DS44=n V.44 Data Compression

Values:

See description

Default:

See description

Description:

Controls the V.44 data compression function.

 

The command syntax is +DS44=[direction][,[0][,[0]

 

[,[max_codewords_tx][,[max_codewords_rx][,[max_string_tx]

 

[,[max_string_rx][,[max_history_tx][,[max_history_rx]]]]]]]]]<CR>

 

Subparameters that are not entered retain their current value.

 

Commas separate optional subparameters, and must be inserted

 

to skip a subparameter. Example: +DS44=,,,2048,2048<CR>

 

changes the maximum number of code words in both

 

directions, and keeps all other settings at their current values.

+DS44=? Reports supported options in the format (list of supported

 

direction values), (0), (0), (list of supported max_codewords_tx

 

values), (list of supported max_codewords_rx values), (list of

 

supported max_string_tx values), (list of supported max_string_rx

 

values), (list of supported max_history_tx values), (list of

 

supported max_history_rx values). Example: +DS44: (3, 0), (0),

 

(0), (256-2048), (256-2048), (31-255), (31-255), (512-11008),

 

(512-11008).

+DS44?

Reports current options in the following format:

 

direction, 0, 0, max_codewords_tx, max_codewords_rx,

 

max_string_tx, max_string_rx, max_history_tx, max_history_rx.

 

Example: +DS44: 3, 0, 0, 1024, 1024, 255, 255, 5120, 4096.

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Contents User Guide Record of Revisions Revision Date DescriptionTrademarks PatentsTable of Contents MultiModemDID User Guide Contents Features Introduction and DescriptionIntroduction Safety We SupplyYou Supply Installation Assemble the ModemConnect the Modem to Your System Connect the Modem to the AC Power Outlet Removing Your Old Modem from WindowsFrom Windows 2000, XP Operation Front Panel of the MultiModemDID ModemDid Operation OperationConnecting to the Internet Dial-Up NetworkingAT Commands, S -Registers Result Codes AT Commands Repeat Last CommandCommunication Standard Setting AnswerEcho Command Mode Characters Number ATDT1028806127853500$123456789DS=n Dial Stored Telephone Number Echo Online Data CharactersMonitor Speaker Mode Return Online to Data ModeResult Codes Enable/Disable Modulation HandshakeModem Reset Tone DialingResult Code Format Result Code OptionsLoad Factory Settings Asynchronous Communications ModeData Terminal Ready DTR Control XON/XOFF Pacing ControlTest Commands Display Current SettingsStore Current Configuration Store Dialing CommandOnline command mode. The modem receives a \Bn \Bn Transmit Break\Kn Break Control \Nn Error Correction Mode Selection \Tn Inactivity Timer\Qn Flow Control Selection \Vn Protocol Result CodeAdaptive Answer Result Code Enable DC n AT Command ControlDirect Connect Enable View Numbers in BlacklistCisco Configuration Command Speed ResponseCommand +DCS=x,y Select V.44 Data Compression $Dn DTR DialingCommand +DS44=n V.44 Data Compression Data Compression ReportingEnable Synchronous Buffered Mode Modulation Selection SubparametersMod value Valid max-rate values bps Commands Command +PCW=n Call Waiting EnableModem on Hold Enable PCM Upstream IgnoreCommand +PMHR=n Modem on Hold Initiate Command +PMHT=n Modem on Hold TimerOther Commands Command +VCID=n Caller ID SelectionCommand +VDR= x, y Distinctive Ring Report Quick Connect ControlCommand +++ATCR Escape Sequence Command %%%ATCR Remote Configuration Escape SequenceMT5634ZBA-DID Initialization Recommendations Busy-Out Timer at End of Call Wait for Digit Time-Out TimeNumber of did Digits Expected Digit FormatFormat for Reporting Incoming did Number DF0DF1 DF2Page Register Unit Range Default Description RegistersValue Speed Value RateS42 Value Digital lossCommand executed Ring signal detectedCarrier signal lost or not detected Invalid commandPage Remote Configuration Basic ProcedureSetup Changing the Remote Escape Character Troubleshooting None of the Indicators LightModem Does Not Respond to Commands Modem Dials But Cannot Connect Modem Cannot Connect When Answering Modem Disconnects While OnlineModem Doesn’t Work with Caller ID Fax and Data Software Can’t Run at the Same TimeDid Troubleshooting Appendix a Regulatory Compliance FCC Part 68 TelecomFCC Part Fax Branding StatementCanadian Limitations Notice Industry CanadaAppendix B Technical Specifications FaxUpgrade Overview Appendix C Upgrading the Modem’s FirmwareExtract the Upgrade Files Appendix D Installing a Modem Under Linux InstallationSelect Dialup Configuration Tool Standard Linux Serial Port DefinitionsCalling the ISP Select RH PPP DialerSymbols IndexMultiModemDID User Guide Index MultiModemDID User Guide Index