Multi-Tech Systems MT5634ZBA-DID Data Terminal Ready DTR Control, XON/XOFF Pacing Control, S36

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MultiModemDID User Guide		Chapter 4 - AT Commands, S-Registers, Result Codes

Command:	&Dn	Data Terminal Ready (DTR) Control
Values:		n = 0, 1, 2, or 3
Default:		2
Description:	&D0	Modem ignores the true status of the DTR signal and responds
		as if it is always on.
	&D1	If DTR drops while in online data mode, the modem enters
		command mode, issues an OK, and remains connected.
	&D2	If DTR drops while in online data mode, the modem hangs up.
		If the signal is not present, the modem will not answer or dial.
	&D3	If DTR drops, the modem hangs up and resets as if an ATZ
		command were issued.
Command:	&En	XON/XOFF Pacing Control
Values:		n = 12 or 13
Default:		12
Description:	&E12 Disables XON/XOFF pacing.
	&E13 Enables XON/XOFF pacing. (&K4 must also be set.)

Note: &E13 has no effect if hardware control (&K3) is selected.

Command:	&Fn	Load Factory Settings
Values:		n = 0
Default:		None
Description:	&F0	Loads factory settings as active configuration.
Note: See also the Z command.

Command:	&Gn	V.22bis Guard Tone Control
Values:		n = 0, 1, or 2
Default:		0
Description:	&G0	Disables guard tone.
	&G1	Sets guard tone to 550 Hz.
	&G2	Sets guard tone to 1800 Hz.
Note: The &G command is not used in North America.

Command:	&Kn	Flow Control Selection
Values:		n = 0, 3, or 4
Defaults:		3
Description:	&K0	Disables flow control.
	&K3	Enables CTS/RTS hardware flow control.
	&K4	Enables XON/XOFF software flow control.

Command:	&Qn	Asynchronous Communications Mode
Values:		n = 0, 5, 6, 8, or 9
Default:		5
Description:	&Q0	Asynchronous with data buffering. Same as \N0.
	&Q5	Error control with data buffering. Same as \N3.
	&Q6	Asynchronous with data buffering. Same as \N0.
	&Q8	MNP error control mode. If MNP error control is not
		established, the modem falls back according to the setting in
		S36.
	&Q9	V.42 or MNP error control mode. If neither error control is
		established, the modem falls back according to the setting in
		S36.

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Contents User Guide Trademarks Record of RevisionsRevision Date Description 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 Communication Standard Setting AT CommandsRepeat Last Command AnswerDS=n Dial Stored Telephone Number Echo Command Mode CharactersNumber ATDT1028806127853500$123456789 Echo Online Data CharactersResult Codes Enable/Disable Monitor Speaker ModeReturn Online to Data Mode Modulation HandshakeResult Code Format Modem ResetTone Dialing Result Code OptionsData Terminal Ready DTR Control Load Factory SettingsAsynchronous Communications Mode XON/XOFF Pacing ControlStore Current Configuration Test CommandsDisplay Current Settings Store Dialing CommandOnline command mode. The modem receives a \Bn \Bn Transmit Break\Kn Break Control \Qn Flow Control Selection \Nn Error Correction Mode Selection\Tn Inactivity Timer \Vn Protocol Result CodeDirect Connect Enable Adaptive Answer Result Code EnableDC n AT Command Control View Numbers in BlacklistCommand +DCS=x,y Select V.44 Data Compression Cisco ConfigurationCommand Speed Response $Dn DTR DialingCommand +DS44=n V.44 Data Compression Data Compression ReportingEnable Synchronous Buffered Mode Modulation Selection SubparametersMod value Valid max-rate values bps Modem on Hold Enable CommandsCommand +PCW=n Call Waiting Enable PCM Upstream IgnoreCommand +PMHR=n Modem on Hold Initiate Command +PMHT=n Modem on Hold TimerCommand +VDR= x, y Distinctive Ring Report Other CommandsCommand +VCID=n Caller ID Selection Quick Connect ControlCommand +++ATCR Escape Sequence Command %%%ATCR Remote Configuration Escape SequenceMT5634ZBA-DID Initialization Recommendations Number of did Digits Expected Busy-Out Timer at End of CallWait for Digit Time-Out Time Digit FormatDF1 Format for Reporting Incoming did NumberDF0 DF2Page Register Unit Range Default Description RegistersValue Speed Value RateS42 Value Digital lossCarrier signal lost or not detected Command executedRing signal 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 Doesn’t Work with Caller ID Modem Cannot Connect When AnsweringModem Disconnects While Online Fax and Data Software Can’t Run at the Same TimeDid Troubleshooting Appendix a Regulatory Compliance FCC Part 68 TelecomCanadian Limitations Notice FCC PartFax Branding Statement Industry CanadaAppendix B Technical Specifications FaxUpgrade Overview Appendix C Upgrading the Modem’s FirmwareExtract the Upgrade Files Select Dialup Configuration Tool Appendix D Installing a Modem Under LinuxInstallation Standard Linux Serial Port DefinitionsCalling the ISP Select RH PPP DialerSymbols IndexMultiModemDID User Guide Index MultiModemDID User Guide Index