Related Manuals for Multitech MultiModem SocketModem MT9234 Series
Summary of Contents for Multitech MultiModem SocketModem MT9234 Series
- Page 1 ® ® MultiModem & SocketModem MT9234 Series AT Commands Reference Guide Downloaded from Elcodis.com electronic components distributor...
- Page 2 World Headquarters Multi-Tech Systems, Inc. 2205 Woodale Drive Mounds View, MN 55112 Phone: 763-785-3500 or 800-328-9717 Fax: 763-785-9874 Internet Address: http://www.multitech.com Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H) Downloaded from Elcodis.com electronic components distributor...
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Page 3: Table Of Contents
Table of Contents Contents Chapter 1 – AT Commands, S-Registers, and Result Codes ..............6 Introduction .............................. 6 A Note About Fax Commands ........................ 6 Data and General Commands......................... 7 Attention Code ........................... 7 ENTER Key ............................7 +++AT Escape Sequence ........................7 Repeat Last Command ......................... - Page 4 Table of Contents Fallback and Fall Forward Control................... 21 Set Callback Security – Direct Connect Enable ..............21 Command Speed Response ....................22 +A8E V.8 and V.8bis Operation Controls ..................22 +A8T Send V.8 bis Signal and/or Message ................... 23 +DCS Select V.42bis or V.44 Data Compression ................
- Page 5 Table of Contents Voice Commands ........................... 44 Commands That Change for Voice Mode Support ................44 Voice +V Commands Detail ........................45 +FCLASS=8 Select Voice Mode ....................45 +VNH Automatic Hang-Up Control ....................45 +VIP Initialize Voice Parameters ....................45 +VRX Enter Voice Receive State ....................
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Page 6: Chapter 1 - At Commands, S-Registers, And Result Codes
These guides are included on the product CD and are posted on the Multi-Tech Web site: http://www.multitech.com/DOCUMENTS/Families/MultiModemZBA/manuals.asp. • Fax Service Class 1 and Fax Service Class 1.0 Developer's Guide. Document number: S000262x •... -
Page 7: Data And General Commands
Chapter 1 – AT Commands, S-Registers, and Result Codes Data and General Commands Attention Code Description: The attention code precedes all command lines except A/, A: and escape sequences. ENTER Key Description: Press the E ) key to execute a command. NTER ETURN +++AT... -
Page 8: Dial
Chapter 1 – AT Commands, S-Registers, and Result Codes Dial Description: This command instructs the modem to begin the dialing sequence. The dial string, which is made up of the telephone number and dial modifiers is entered after the D command. -
Page 9: Echo Command
Chapter 1 – AT Commands, S-Registers, and Result Codes Echo Command Description: Enables or disables the modem's echo feature. When the echo feature is selected and the modem is in the command mode, characters sent to the modem are sent back to the host and displayed on the monitor. -
Page 10: I Request Id Information
Chapter 1 – AT Commands, S-Registers, and Result Codes Request ID Information Description: Use this command to display product information about the modem. In each case the information is transmitted to the host system followed by a final result code. Syntax: ATI<value>... -
Page 11: Modulation Handshake
Chapter 1 – AT Commands, S-Registers, and Result Codes Modulation Handshake Description: Sets the modem protocol for handling handshake negotiation at connection time if the communication speed of the remote modem is different from the speed of the ATN<value> Values: Modem performs handshake only at communication standard specified by S- Register S37 and the B<value>... -
Page 12: Sr S-Register Control
Chapter 1 – AT Commands, S-Registers, and Result Codes S-Register Control Description: Use this command to view or change an S-register. S-registers contain parameters used by the modem. This command has two forms, one to show the contents of the register and the other to change the contents of the register. -
Page 13: Select Result Code And Monitor Call Progress
Chapter 1 – AT Commands, S-Registers, and Result Codes Select Result Code and Monitor Call Progress Description: Use this command to enable tone detection options used in the dialing process. As each function is chosen, the modem’s result codes are also affected. Therefore, this command is frequently used to control the modem’s responses. -
Page 14: Data Carrier Detect (Dcd) Control
Chapter 1 – AT Commands, S-Registers, and Result Codes &C Data Carrier Detect (DCD) Control Description: Use this command to control the modem’s response to receiving a remote modem's carrier signal. Data carrier detect (DCD) is a signal from the modem to the computer indicating that the carrier signal is being received from a remote modem. -
Page 15: V.22Bis Guard Tone Control
Chapter 1 – AT Commands, S-Registers, and Result Codes &G V.22bis Guard Tone Control Description: Use this command to select which guard tone, if any, the modem will send while transmitting in the high band (answer mode). This command is only used in V.22 and V.22 bis mode. -
Page 16: Asynchronous Communications Mode
Chapter 1 – AT Commands, S-Registers, and Result Codes &Q Asynchronous Communications Mode Description: This command is supported to ensure backward compatibility with communication software that issues the &Q command. The preferred method for changing the asynchronous communication mode is to use the \N command. Syntax: AT&Q<value>... -
Page 17: Store Current Configuration
Chapter 1 – AT Commands, S-Registers, and Result Codes &W Store Current Configuration Description: Use this command to store the modem's command options and all S- registers except S3, S4, and S5. The Z0 command or a power-up reset of the modem restores these profiles. -
Page 18: Transmit Break
Chapter 1 – AT Commands, S-Registers, and Result Codes Transmit Break Description: Use this command in non-error-controlled mode. The command causes the modem to transmit a break signal to the remote modem. The minimum break length is 100 ms and the maximum break length is 900 ms. The <break_time> parameter has values between one and nine with each increment representing 100 ms. -
Page 19: Error Correction Mode Selection
Chapter 1 – AT Commands, S-Registers, and Result Codes Error Correction Mode Selection Description: Use this command to select the type of error control used by the modem when sending or receiving data. Syntax: AT\N<value> Values: Buffer mode. No error control (same as &Q6). Direct mode. -
Page 20: Xon/Xoff Pass-Through
Chapter 1 – AT Commands, S-Registers, and Result Codes XON/XOFF Pass-Through Description: Use this command to restrict the XON/XOFF flow control to the local DCE for processing or to have the local DCE send the flow control characters to the remote DCE. -
Page 21: Data Compression Control
Chapter 1 – AT Commands, S-Registers, and Result Codes Data Compression Control Description: Use this command to enable or disable data compression. This command enables or disables V.44, V.42 bis, and MNP class 5 data compression. The command overwrites the current status of the +DCS command. The command is also overwritten by changes made by the +DCS command. -
Page 22: Command Speed Response
Chapter 1 – AT Commands, S-Registers, and Result Codes Command Speed Response Description: Sets the modem to respond to AT commands at desired speeds. Note: This command does not work with parallel, USB, PCI, PCIe. Syntax: AT%S<value> Values: Sets modem to respond to AT commands at all normal speeds. AT commands accepted at 115200 bps only. -
Page 23: A8T Send V.8 Bis Signal And/Or Message
Chapter 1 – AT Commands, S-Registers, and Result Codes Result Codes: OK if <v8o> = 1, 6 and <v8a> = 1, 5 and <v8cf> = 0 to FF and <v8b> = 0 to 2. ERROR if <v8o> ≠ 1, 6 or <v8a> ≠ 1, 5 or <v8cf> ≠ 0 to FF or <v8b> ≠ 0 to 2. OK if <signal>... -
Page 24: Dr V.44 Data Compression Reporting
Chapter 1 – AT Commands, S-Registers, and Result Codes V.44 Data Compression Reporting 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). -
Page 25: Ds44
Chapter 1 – AT Commands, S-Registers, and Result Codes +DS44 V.44 Data Compression Description: Controls the V.44 data compression function. Syntax: AT+DS44=<direction>,<compression_negotiation>,<compatibility>, <max_codewords_tx>, <max_codewords_rx>,<max_string_tx>, <max_string_rx>,<max_history_tx>,<max_history_rx> <direction> Values: Specifies the DTE direction of the data compression. No compression. Compression in both directions (default). <max_codewords_tx>... -
Page 26: Eb Break Handling In Error Control Operation
Chapter 1 – AT Commands, S-Registers, and Result Codes Break Handling in Error Control Operation Description: This extended-format compound parameter controls the break handling in V.42 operation. It accepts three numeric subparameters. Syntax: AT+EB=<break_selection>,<default_length> <break selection> Values: Ignore break. Default. Nonexpedited, nondestructive. -
Page 27: Error Control Selection
Chapter 1 – AT Commands, S-Registers, and Result Codes Error Control Selection Description: Use this command to select the error correction mode. If the modem is operating in V.80 mode (synchronous buffered mode), and +ES=,,8, the +ES? will always return +ES: 6,,8. -
Page 28: Fclass
Chapter 1 – AT Commands, S-Registers, and Result Codes +FCLASS Fax Class Indication Description: Use this command to set the modem service class. The service class determines if the modem is in data, FAX, or voice mode. Syntax: AT+FCLASS <Value> Values: +FCLASS=0 Selects data mode. -
Page 29: Gmr Revision Request
Chapter 1 – AT Commands, S-Registers, and Result Codes +GMR Revision Request Description: Displays the version of the modem code. Syntax: AT+GMR? or AT+GMR=? Reports: +GMR? Reports current or selected options. +GMR=? Reports supported options. Result Code: +IFC DTE-DCE Local Flow Control Description: Use this command to select the local flow control method. -
Page 30: Itf Transmit Flow Control Threshold
Chapter 1 – AT Commands, S-Registers, and Result Codes Reports: +IPR? Reports current or selected options. +IPR=? Reports supported options. Result Code: +ITF Transmit Flow Control Threshold Description: Use this command to set the flow control thresholds. The <off> parameter represent the off signal threshold in octets. - Page 31 Chapter 1 – AT Commands, S-Registers, and Result Codes Syntax: ATMS=<carrier>,<automode>,<min_rate>,<max_rate>,<min_rx_rate>, <max_rx_rate> <carrier> Values: V.92 (default) V.90 V.34 V32B V.32bis V.32 V22B V.22bis V.22 V.22 Bell212A Bell 212A* V23C V.23, constant carrier, asymmetric FDM Bell103 Bell 103* *The +MS command was standardized by ITU-T recommendation V.250. However, the standard command does not include the additional functionality provided by the Bell212A and Bell103 values of the <carrier>...
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Page 32: Dtr Dialing
Chapter 1 – AT Commands, S-Registers, and Result Codes DTR Dialing Description: Dials the number in a memory location. Note: This command does not work with parallel, USB, PCI, PCIe. Syntax: AT$D<value> Values: Disables DTR dialing. Dials the number in memory location 0 when DTR goes high. Default: Result Codes: ERROR... -
Page 33: Mb Online Bps Speed
Chapter 1 – AT Commands, S-Registers, and Result Codes Online BPS Speed Description: Selects speed in bits per second. Syntax: AT$MB<value> Default: 28,800 Values: Selects CCITT V.23 mode Selects 300 bps on-line 1200 Selects 1200 bps on-line 2400 Selects 2400 bps on-line 4800 Selects 4800 bps on-line 9600... -
Page 34: Vdr Distinctive Ring Report
Chapter 1 – AT Commands, S-Registers, and Result Codes +VDR Distinctive Ring Report Description: Enables reporting of ring cadence information to the DTE and specifies the minimum ring cadence that will be reported. The report format is one line per silence period and one line per ring period. The length of the silence period is in the form DROF=number in units of 100 ms<CR><LF>, and the length of the ring is in the form DRON=number in units of 100 ms<CR>... -
Page 35: Atmtsmodem Remote Configuration Escape Sequence
Chapter 1 – AT Commands, S-Registers, and Result Codes %%%ATMTSMODEM Remote Configuration Escape Sequence Description: Initiates remote configuration mode while online with remote modem. The remote configuration escape character (%) is defined in register S9. Syntax: %%%ATMTSMODEM<CR> Values: +VCID Caller ID Selection Description: Enables Caller ID detection and configures the reporting and presentation of the Caller ID data that is detected after the first ring. -
Page 36: Callback Security Commands
Chapter 1 – AT Commands, S-Registers, and Result Codes Callback Security Commands Note: Callback Security Commands do not work with parallel, USB, PCI, PCIe. #CBA Callback Attempts Description: Sets the number of callback attempts that are allowed after passwords have been exchanged between modems. -
Page 37: Cbp Callback Parity
Chapter 1 – AT Commands, S-Registers, and Result Codes #CBP Callback Parity Description: Sets parity for the callback security messages. Syntax: AT#CBP<value> Values: No parity. Odd parity. Even parity. Default: #CBR Callback Security Reset Description: Clears the password and phone number in the y memory location. Syntax: AT#CBR<value>... -
Page 38: S-Registers
Chapter 1 – AT Commands, S-Registers, and Result Codes S-Registers Certain modem values, or parameters, are stored in memory locations called S-Registers. Use the S command to read or to alter the contents of S-Registers (see previous section). Register Unit Range Default Description... - Page 39 Chapter 1 – AT Commands, S-Registers, and Result Codes decimal 0–19 Sets the maximum V.34 “upstream” speed at which the modem attempts to connect. 0 = maximum speed 1 = reserved 2 = 1200/75 bps 3 = 300 bps 4 = reserved 5 = 1200 bps 6 = 2400 bps 7 = 4800 bps...
- Page 40 Chapter 1 – AT Commands, S-Registers, and Result Codes decimal 7 or 128 Enables (7) or disables (128) LAPM negotiation . The following table lists the S36 and S48 configuration settings for certain types of connections. S48=7 S48=128 S36=0, 2 LAPM or hang up Do not use S36=1, 3...
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Page 41: Result Codes
Chapter 1 – AT Commands, S-Registers, and Result Codes Result Codes In command mode your modem can send responses called Result Codes to your computer. Result codes are used by communications programs and can also appear on your monitor. Terse Verbose Description Command executed... - Page 42 Chapter 1 – AT Commands, S-Registers, and Result Codes CONNECT 33333 Connected at 33333 bps CONNECT 34666 Connected at 34666 bps CONNECT 37333 Connected at 37333 bps CONNECT 38666 Connected at 38666 bps CONNECT 41333 Connected at 41333 bps CONNECT 42666 Connected at 42666 bps CONNECT 45333 Connected at 45333 bps...
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Page 43: Chapter 4 - Voice Commands
Chapter 4 – Voice Commands Chapter 4 – Voice Commands Introduction Important Note: Some Voice commands do not apply to the SMI build. This chapter describes +V command support. The +V Command standard IS-101 Voice Control Interim Standard for Asynchronous DCE (prepared by the TIA Technical Subcommittee TR29.2 on Facsimile Digital Interface) defines the commands that a PC user may issue to configure and control a voice/fax/data modem and the responses (result codes) that the voice/fax/data modem may issue in response to those commands. -
Page 44: Voice S-Register Summary
Chapter 4 – Voice Commands Voice S-Register Summary Voice mode S-Register changes are outlined below. S-Register Description Automatic answer is disallowed in Voice mode. Wait for Carrier After Dial. Default is 60 seconds. In Voice mode, S7 contains the maximum amount of time that the modem will wait during Call Origination, all the time detecting for ring backs, before assuming that the remote station will not go off hook. -
Page 45: Voice +V Commands Detail
Chapter 4 – Voice Commands Voice +V Commands Detail +FCLASS=8 Select Voice Mode Description: The +FCLASS=8 command selects voice mode. +VNH Automatic Hang-Up Control Description: Enables or disables automatic hang-up. Syntax: AT+VNH=<hook> Values: <hook> +VNH=0 Enables automatic hang-ups as in non-Voice modes (such as hanging up the phone when the modem does not detect a data carrier within a given time interval). -
Page 46: Vts Send Voice Tone(S)
Chapter 4 – Voice Commands +VTS Send Voice Tone(s) Description: This command causes the modem to send DTMF digit or hookflash tones with the duration specified by +VTD, to send DTMF digit or hookflash tone duration specified by this command, or to send single or dual tone frequencies with duration specified with this command. -
Page 47: Vtx Start Voice Transmission Process
Chapter 4 – Voice Commands +VTX Start Voice Transmission Process Description: Starts the voice transmission process. The PC sends the data in the format of the previously entered +VSM command, using the flow control method selected by the +FLO command. The voice data is buffered to withstand gaps of missing data from the PC. -
Page 48: Vit Set Dte/Dce Inactivity Timer
Chapter 4 – Voice Commands +VIT Set DTE/DCE Inactivity Timer Description: Sets the modem's initial value for the PC/Modem Inactivity Timer. The units are in 1.0 seconds. The PC can disable the Inactivity Timer by using a value of 0 (+VIT=0). The Inactivity Timer serves to ensure that the PC does not leave the modem in a state where it is not accessible by voice-unaware software. -
Page 49: Vls Select Analog Source/Destination
Chapter 4 – Voice Commands +VLS Select Analog Source/Destination Description: Selects one or more source/destination devices for the analog data to be transmitted. The parameter <label> identifies each of the supported analog source/destination hardware devices. Codes, called "primitives", are provided to describe which voice I/O device(s) are components in a possible hardware configuration. -
Page 50: Vra Ringback Goes Away Timer
Chapter 4 – Voice Commands +VRA Ringback Goes Away Timer Description: Sets the length of time the modem will wait between ringbacks during a call origination before the modem can assume that the remote device has gone off-hook. Syntax: AT+VRA=<interval> Values: <interval>... -
Page 51: Vsd Silence Detection Sensitivity
Chapter 4 – Voice Commands +VSD Silence Detection Sensitivity Description: Sets the silence detection sensitivity and the required period of silence before the modem reports silence detected at the end of a voice receive, either with the Presumed End of Message (Quiet) or Presumed Hang Up (Silence) event reports. The table below outlines the possible combinations of the +VSD and +VSM commands using the <sds>... -
Page 52: Vsm Select Voice Compression Method
Chapter 4 – Voice Commands +VSM Select Voice Compression Method Description: Sets the modem to a specified voice compression method, silence compression sensitivity, and voice sampling rate. The modem can maintain a different event detection capability for each compression method. For example, you may want to record your welcome message with the lowest amount of silence removal, with the goal of reducing distortion. -
Page 53: Vtd Beep Tone Duration Timer (Dtmf/Tone Generation Duration)
Chapter 4 – Voice Commands +VTD Beep Tone Duration Timer (DTMF/Tone Generation Duration) Description: Sets the default DTMF/tone generation duration used with the +VTS command. This command does not affect the ATD command settings. The <dur> parameter range is given by the +VTD=? command, in units of 0.01 seconds. A setting of +VTD=0 specifies a manufacturer-specific time interval. -
Page 54: Vem Event Reporting And Masking
Chapter 4 – Voice Commands DRON=8 DROF=4 DRON=8 RING <DLE><.> Reports: +VDR? Displays current or selected values. +VDR=? Displays a list of the supported values. Result Codes: OK if the modem accepts the command ERROR if the parameter is out of range or not in voice mode. +VEM Event Reporting and Masking Description:... -
Page 55: Interface Configuration Commands
Chapter 4 – Voice Commands Interface Configuration Commands The commands in this section are used to define the interface between the PC and the modem. +VBT Set Modem Flow Control Assert and Deassert Points Description: The +VBT= command is used to set the flow control assert and deassert points inside the modem's internal transmit buffer. -
Page 56: Vpp Enable Or Disable Voice Mode Packet Protocol
Chapter 4 – Voice Commands +VPP Enable or Disable Voice Mode Packet Protocol Description: The +VPP command enables and disables the Packet protocol for Voice mode operation, and handles the new unsolicited Voice mode result codes. The Packet protocol is used to detect lost octets on the modem-to-PC serial link, and to recover the lost octets by requesting retransmission. -
Page 57: Flow Control
Chapter 4 – Voice Commands Flow Control XON/XOFF flow control is used by the modem to match the PC-to-modem data rate to the line-signaling rate, as well as to the requirements of analog conversion of the voice signals and voice data. In-band, uni-directional XON/XOFF flow control is mandatory. -
Page 58: Unsolicited Voice Mode Result Codes
Chapter 4 – Voice Commands Unsolicited Voice Mode Result Codes The form of the unsolicited result codes for voice mode is different from standard modem Command mode result codes. The +V specification refers to these voice mode result codes as "event detection reports". -
Page 59: Voice Mode Shielded Codes
Chapter 4 – Voice Commands Voice Mode Shielded Codes These codes can be sent in either Command mode or Data mode. The DCE may return the event detection reports after the OK result code from the +FCLASS command. One or more simple event detection reports may be embedded within the data portion of a complex event detection report. - Page 60 Chapter 4 – Voice Commands (6C) Event Number 13 (Loop Current Interruption). Usually indicates a remote hang up. (4C) Event Number 14 (Loop Current Polarity Reversal). May indicate a hang up or a receive, depending on CO implementation. (77) Event Number 15 (Call Waiting/Beep Interrupt). (74) Event Number 17 (TDD Detected - 1400/1800).
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Page 61: Dte/Dce Interface Rates
Chapter 4 – Voice Commands DTE/DCE Interface Rates The table below indicates the anticipated modem-to-computer interface rates for both the 7.2 bits-per- sample rate and the 8 bits-per-sample rate. Projected DTE/DCE Interface Rates for 7.2/8K Hz Sample Rates Bits per Projected DTE/DCE Projected DTE/DCE Sample... -
Page 62: Chapter 5 - Country/Regional Code Configuration
New Zealand At%T19,0,9 Countries/Regions Supported See the list on the Multi-Tech Web site for countries and regions supported. http://www.multitech.com/PRODUCTS/Info/approvals/ Then click on global modems. The Global Modem Country/Region Approvals page displays. On this page you can view approvals, configuration strings (includes the country/regional code) and responses available in list form by selecting country/region and/or product. -
Page 63: Index
Index Index #CBA – Callback Attempts ........36 +++AT – Escape Sequence ........7 #CBD – Callback Delay ..........36 +A8E – V.8 and V.8bis Operation Controls ....22 #CBF – Callback Failed Attempts Display ....36 +A8T – Send V.8bis Signal and/or Message .... 23 #CBFR –... - Page 64 Index DTE/DCE Interface Rate (Turn Off Autobaud) – +VPR ................56 A – Answer ..............7 DTE/DCE Interface Rates ........61 \A – Select Maximum MNP Block Size ..... 17 DTE-DCE Local Flow Control – +IFC ....... 29 A/ – Repeat Last Command ........7 DTE-DCE Local Rate Reporting –...
- Page 65 Index MNP Error Correction ..........19 Set Register Value – Sr ..........12 Model Identification Request – +GMM ..... 28 Set Sleep Mode – S24 ..........38 Modulation Handshake – N ........11 Set the Volume for Transmitted Voice Samples – Modulation Reporting Control –...
- Page 66 Index Voice Gain for Received Voice Samples – +VGR ..47 Voice Mode Result Codes ........57 X – Select Result Code & Call Monitor Progress ..13 Voice Mode Shielded Codes ........59 X – XON/XOFF Pass-Through ......... 20 XON/XOFF Pacing Control –...