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Conexant H08-15355F Reference Manual

Commands for host-processed and host-controlled modems
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Doc. No. 1118, Rev. 2
February 5, 1999

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  • Page 1 Doc. No. 1118, Rev. 2 February 5, 1999...
  • Page 2 Command Reference Manual Information provided by Conexant Systems, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Conexant for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Conexant other than for circuitry embodied in Conexant products.

  • Page 3: Table Of Contents

    Command Reference Manual Table of Contents INTRODUCTION ................................1-1 OVERVIEW ................................1-1 1.1.1 Command Syntax ............................. 1-1 1.1.2 Command Descriptions ..........................1-1 REFERENCE DOCUMENTATION ......................... 1-1 SYNTAX AND PROCEDURES ............................2-1 Alphabet ................................. 2-1 DTE Commands Lines............................2-1 2.2.1 Command Line General Format ....................... 2-1 2.2.2 Command Line Editing ..........................
  • Page 4 Command Reference Manual DATA COMMANDS ..............................3-1 3.2.1 Generic Modem Control ........................... 3-1 3.2.1.1 Z - Reset to Default Configuration.................... 3-1 3.2.1.2 +FCLASS - Select Active Service Class .................. 3-2 3.2.1.3 +VCID - Caller ID (CID) ......................3-2 3.2.1.4 \N - Operating Mode......................... 3-3 3.2.1.5 &F - Set to Factory-Defined Configuration ................
  • Page 5 Command Reference Manual 3.2.6.3 %C - Enable/Disable Data Compression ................3-32 3.2.6.4 N - Automode Enable ......................3-33 3.2.7 V.8/V.8bis Commands..........................3-33 3.2.7.1 +A8E - V.8 and V.8bis Operation Controls................3-33 3.2.7.2 +A8M - Send V.8 Menu Signals ..................... 3-34 3.2.7.3 +A8I: - CI Signal Indication.....................
  • Page 6 Command Reference Manual COMMANDS AND PARAMETERS ........................4-4 4.2.1 Mode Entry Commands..........................4-4 4.2.1.1 +FCLASS=1 - Select Facsimile Class 1 Mode................. 4-4 4.2.1.2 +FCLASS=1.0 - Select Facsimile Class 1.0 Mode..............4-4 4.2.2 Mode Commands ............................. 4-4 4.2.2.1 +FAE - Auto Answer Enable ....................4-4 4.2.2.2 +FTS - Transmit Silence ......................
  • Page 7 Command Reference Manual List of Tables Table 3-1. Result Codes................................. 3-10 Table 3-1. +MS Command Supported Rates ......................... 3-24 Table 3-2. V.8/V.8bis Example Commands/Responses for Originator and Answerer............3-37 Table 3-3. AT#UD Last Call Status Report Format ........................ 3-43 Table 3-4. Call Setup Result Codes ............................3-44 Table 3-5.
  • Page 8 Command Reference Manual This page is intentionally blank. Conexant viii 1118...

  • Page 9: Introduction

    Command Reference Manual 1. INTRODUCTION 1.1 OVERVIEW This manual describes the host command and responses for Conexant host-controlled and host-processed (SoftK56) modem families. These families include the following (but are not limited to) modem products: RCV56HCF-ISA Modem Device Set RCV56HCF-PCI Modem Device Set RH56D-PCI/RC56HCF-PCI Modem Device Set RH56LD-PCI Modem Device Set SoftK56-PCI (RS56-PCI) for PCI Bus Modem Device Set...
  • Page 10 Command Reference Manual This page is intentionally blank. Conexant 1118...

  • Page 11: Syntax And Procedures

    Command Reference Manual 2. SYNTAX AND PROCEDURES The command and response syntax and procedures generally conform to referenced recommendations and standards. Since these recommendations and standards describe characteristics universal to a large installed base of modems to a maximum degree, there may be syntax and procedural differences due to extensions and behavioral differences in implemented commands, parameters, and responses beyond that described in these recommendations and standards.

  • Page 12: Repeating A Command Line

    Command Reference Manual 2.2.4 Repeating a Command Line If the prefix "A/" or "a/" is received, the modem immediately executes once again the body of the preceding command line. No editing is possible, and no termination character is necessary. A command line may be repeated multiple times in this manner.

  • Page 13: Extended Syntax Commands

    Command Reference Manual 2.4 Extended Syntax Commands 2.4.1 Command Naming Rules Both actions and parameters have names, which are used in the related commands. Names always begin with the character "+". Following the "+", from one to 16 additional characters appear in the command name. These characters will be selected from the following set: A through Z (IA5 4/1 through 5/10)

  • Page 14: Compound Values

    Command Reference Manual 2.4.2.3 Compound Values Actions may have more than one subparameter associated with them, and parameters may have more than one value. These are known as "compound values", and their treatment is the same in both actions and parameters. A compound value consists of any combination of numeric and string values (as defined in the description of the action or parameter).

  • Page 15: Parameter Set Command Syntax

    Command Reference Manual respond with an ERROR result code, if the continued correct operation of the interface between the modem and DTE will not be affected by such action. Read-only parameters may be read and tested. "Read-write" parameters may be set by the DTE, to store a value or values for later use. Read-write parameters may be set, read, and tested.

  • Page 16: Issuing Commands

    Command Reference Manual 2.5 Issuing Commands All characters in a command line must be issued at the same data rate, and with the same parity and format. The modem will ignore any command line that is not properly terminated. The modem may consider 30 seconds of mark idle time between any two characters as an improperly terminated command line.

  • Page 17: Responses

    Command Reference Manual 2.7.1 Responses There are two types of responses that may be issued by the modem: information text and result codes. Information Text. Information text responses consist of three parts: a header, information text, and a trailer: The characters transmitted for the header are determined by the V command. The trailer consists of two characters, being the character having the ordinal value of parameter S3 followed by the character having the ordinal value of parameter S4.

  • Page 18: Name>: Information Text Formats For Test Commands

    Command Reference Manual A single space character separates the colon character from the <value>; no space appears between the result code name and the colon. If multiple values are to be reported with the result code, the form is: +<name>: <compound_value> Fax Modes.

  • Page 19: Data Command Set

    Command Reference Manual 3. DATA COMMAND SET 3.1 COMMAND GUIDELINES The commands used to control and report modem operation in data modem mode are defined in this section. The Data Modem Mode commands and responses described in this section are applicable when command +FCLASS=0. (See Section 3.2.1.2 for the definition of the FCLASS command.) The default values are typical of a fully configured modem supporting all data rates and options.

  • Page 20: Fclass - Select Active Service Class

    Command Reference Manual 3.2.1.2 +FCLASS - Select Active Service Class This command selects the active service class (mode). Syntax +FCLASS=<mode> Defined Values <mode> Decimal number which corresponds to the selected service class. Select Data Mode (see Section 3). (Default.) Select Facsimile Class 1 Mode (see Section 4) Select Facsimile Class 1.0 Mode (see Section 4) Select Voice Mode (see Section 5) Select VoiceView Mode (see Section 5)

  • Page 21: N - Operating Mode

    Command Reference Manual 3.2.1.4 \N - Operating Mode This command controls the preferred error correcting mode to be negotiated in a subsequent data connection. Syntax \N<mode> Defined Values <mode> Decimal number which corresponds to the selected mode. Selects normal speed buffered mode (disables error-correction mode) and forces &Q6 (selects asynchronous operation in normal mode.) Same as \N0.

  • Page 22: T - Local Analog Loopback Test

    Command Reference Manual 3.2.1.6 &T - Local Analog Loopback Test The modem will perform the local analog loopback test if &T1 is selected. The test can be run only when in an asynchronous operation in non-error-correction mode (normal). To terminate the test in progress, the escape sequence must be entered first (see Section 3.1.1).

  • Page 23: Gmi - Request Manufacturer Identification

    Command Reference Manual Reports modem data pump model and internal code revision, e.g.: ATI6 DP Rev SPX RAM Ver 28 CTL RAM Ver 28 K56FLEX SPX RAM Ver 44 K56FLEX CTL RAM Ver 47 Reports modem data pump model and internal code revision, e.g.: ATI7 Reports OK, e.g.: ATI8...

  • Page 24: Gsn - Request Product Serial Number Identification

    Command Reference Manual 3.2.1.11 +GSN - Request Product Serial Number Identification This command causes the modem to report the modem product model serial number as provided by the .INF File. Syntax +GSN Typical Response +GSN: 3.2.1.12 +GOI - Request Global Object Identification This command causes the modem to transmit one or more lines of information text identifying the device, based on the ISO system for registering unique object identifiers.

  • Page 25: Gci - Country Of Installation

    Command Reference Manual 3.2.1.14 +GCI - Country of Installation This extended syntax command indicates and selects the country of installation for the modem. This parameter selects the settings for any operational parameters that need to be adjusted for national regulations or telephone networks. Syntax +GCI=<country_code>...

  • Page 26: Q - Quiet Results Codes Control

    Command Reference Manual 3.2.2.2 Q - Quiet Results Codes Control The command enables or disables the sending of result codes to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 2. Syntax O[value>] Defined Values <value>...

  • Page 27: Extended Result Codes

    Command Reference Manual 3.2.2.5 X - Extended Result Codes This command selects the subset of the result code messages used by the modem to inform the DTE of the results of commands. Blind dialing is enabled or disabled by country parameters. If the user wishes to enforce dial tone detection, a "W" can be placed in the dial string (see D command).

  • Page 28: Table 3-1. Result Codes

    Command Reference Manual Table 3-1. Result Codes Short Form Long Form n Value in ATXn Command Notes +FCERROR CONNECT RING NO CARRIER ERROR CONNECT 1200 NO DIALTONE BUSY NO ANSWER CONNECT 600 CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 7200 CONNECT 12000 CONNECT 14400 CONNECT 19200...
  • Page 29 Command Reference Manual Table 3-1. Result Codes (Cont'd) Short Form Long Form n Value in ATXn Command Notes CONNECT 26400 CONNECT 28800 +DR: ALT +DR: V42B +DR: NONE +ER: NONE +ER: LAPM +MRR: 31200 +MRR: 33600 +ER: ALT LINE IN USE CONNECT 33600 CONNECT 31200 +MCR: B103...
  • Page 30 Command Reference Manual Table 3-1. Result Codes (Cont'd) Short Form Long Form n Value in ATXn Command Notes CONNECT 42000 CONNECT 44000 CONNECT 46000 CONNECT 48000 CONNECT 50000 CONNECT 52000 CONNECT 54000 CONNECT 56000 CONNECT 230400 CONNECT 28000 CONNECT 29333 CONNECT 30667 CONNECT 33333 CONNECT 34667...

  • Page 31: C - Rlsd Behavior

    Command Reference Manual 3.2.2.6 &C - RLSD Behavior This parameter determines how the state of the Received Line Signal Detector (RLSD) output relates to the detection of received line signal from the distant end. Changing the parameter will take effect immediately in both the command and online command states.

  • Page 32: K - Flow Control

    Command Reference Manual 3.2.2.8 &K - Flow Control This command defines the DTE/DCE (terminal/modem) flow control mechanism. Syntax &K[<value>] Defined Values <value> Decimal number corresponding to the selected option. Disables flow control. Enables RTS/CTS flow control. (Default for data modem modes.) Enables XON/XOFF flow control.

  • Page 33: Ipr - Fixed Dte Rate

    Command Reference Manual 3.2.2.11 +IPR - Fixed DTE Rate This numeric extended-format parameter specifies the data rate at which the modem will accept commands during online operation. It may be used to select operation at rates at which the modem is not capable of automatically detecting the data rate being used by the DTE.

  • Page 34: Ifc - Dte-Modem Local Flow Control

    Command Reference Manual 3.2.2.12 +IFC - DTE-Modem Local Flow Control This extended-format compound parameter controls the operation of local flow control between the DTE and the modem during the data state when V.42 error control is used, or when fallback to non-error control mode is specified to include buffering and flow control.

  • Page 35: Call Control

    Command Reference Manual Reported Rate The <rate> reported represents the current (negotiated or renegotiated) DTE-modem rate. If enabled, the intermediate result code is transmitted after any modulation, error control or data compression reports are transmitted, and before any final result code (e.g., CONNECT) is transmitted.

  • Page 36: T - Set Tone Dial Default

    Command Reference Manual The 'star' digit (tone dialing only). The 'gate' digit (tone dialing only). Flash: the modem will go on-hook for a time defined by the value of S29. Country requirements may limit the time imposed. Wait for silence: the modem will wait for at least 5 seconds of silence in the call progress frequency band before continuing with the next dial string parameter.

  • Page 37: P - Set Pulse Dial Default

    Command Reference Manual 3.2.3.3 P - Set Pulse Dial Default This command forces pulse dialing until the next T dial modifier or T command is received. Sets S14 bit 5. As soon as a dial command is executed which explicitly specifies the dialing mode for that particular call (e.g., ATDT..), this command is overridden so that all future dialing will be tone dialed.

  • Page 38: O - Return To On-Line Data Mode

    Command Reference Manual 3.2.3.6 O - Return to On-Line Data Mode This command specifies that the modem will enter the on-line data mode from the on-line command mode with or without a retrain. If in the off-line command mode when this command is entered, the modem reports ERROR. Syntax O[<value>] Defined Values...

  • Page 39: M - Speaker Control

    Command Reference Manual 3.2.3.8 M - Speaker Control This command controls speaker on or off according to the supplied parameter. Syntax M[<value>] Defined Values <value> Decimal number corresponding to the selected option. Speaker off. Speaker on during call establishment, but off when receiving carrier. (Default.) Speaker on.

  • Page 40: P - Select Pulse Dial Make/Break Ratio

    Command Reference Manual 3.2.3.10 &P - Select Pulse Dial Make/Break Ratio This command determines the make/break ratio used during pulse dialing. It is only effective if the appropriate bit to enable this command is set through the .INF File. If enabled, it will override the make/break ratios in the OEM parameters in the .INF File.

  • Page 41: W - Store Current Configuration

    Command Reference Manual 3.2.3.12 &W - Store Current Configuration This command saves the current (active) configuration (profile), including S-Parameters, in the Registry. The current configuration is comprised of a list of storable parameters illustrated in the &V command. These settings are restored to the active configuration upon receiving an Z command or at power up.

  • Page 42: Modulation Control Commands

    Command Reference Manual 3.2.4 Modulation Control Commands 3.2.4.1 +MS - Modulation Selection This extended-format compound parameter controls the manner of operation of the modulation capabilities in the modem. It accepts six subparameters: Syntax +MS=[<carrier>[,<automode>[,<min_tx_rate>[,<max_tx_rate>[,<min_rx_rate>[,<max_rx_rate>]]]]]] Where: Possible <carrier>, <min_tx_rate>, <max_tx_rate>, <min_rx_rate>, and <max_rx_rate values are listed in are Table 3-1 (see definitions below).

  • Page 43: Mr - Modulation Reporting Control

    Command Reference Manual Reporting Current or Selected Values Command: +MS? Response: +MS: <carrier>,<automode>,<min_tx_rate>,<max_tx_rate>,<min_rx_rate>,<max_rx_rate> Note: The current active settings are reported under control of the +MR parameter. Example: +MS: K56, 1,75,33600,75,56000 For default values. This example allows maximum system flexibility to determine optimal receive and transmit rates during operation. Reporting Supported Range of Parameter Values Command: +MS=?

  • Page 44: E - Enable/Disable Line Quality Monitor, Auto-Retrain, And Auto-Rate Renegotiation

    Command Reference Manual +MCR: Report Syntax Response: +MCR: <carrier> <carrier> Alphanumeric code corresponding to the reported carrier. Defined values are: B103 For Bell 103 B212 For Bell 212 For V.21 For V.22 V22B For V.22bis V23C For V.23 For V.32 V32B For V.32bis For V.34...

  • Page 45: Error Control Commands

    Command Reference Manual 3.2.5 Error Control Commands This section describes parameters used to select and operate the modem in V.42 LAPM or MNP error control mode, Normal (Buffered) Mode, or V.80 Synchronous Access Mode. 3.2.5.1 +ES - Error Control and Synchronous Mode Selection This extended-format command specifies the initial requested mode of operation when the modem is operating as the originator, optionally specifies the acceptable fallback mode of operation when the modem is operating as the originator, and optionally specifies the acceptable fallback mode of operation when the modem is operating as the answerer.

  • Page 46: Eb - Break Handling In Error Control Operation

    Command Reference Manual Examples +ES=6 Enable V.80 Synchronous Access Mode originator +ES=,,8 Enable V.80 Synchronous Access Mode answerer +ES=6,,8 Enable V.80 Synchronous Access Mode originator and answerer +ES=3 Enable V.42 with Detection Phase originator. Disable V.80 Synchronous Access Mode originator. +ES=,,2 Allow LAPM, MNP, or Normal Mode connection answerer.

  • Page 47: Esr - Selective Repeat

    Command Reference Manual 3.2.5.3 +ESR - Selective Repeat This extended-format numeric parameter controls the use of the selective repeat (SREJ) option in V.42. Syntax +ESR=[<value>] Decimal number 0 specifying that SREJ is not used. Example: +ESR: (0) For default settings. 3.2.5.4 +EFCS - 32-bit Frame Check Sequence This extended-format numeric parameter controls the use of the 16-bit or 32-bit frame check sequence (FCS) option in V.42.

  • Page 48: Etbm - Call Termination Buffer Management

    Command Reference Manual +ER: <type> The +ER: <type> reported represents the current (negotiated or renegotiated) modem-modem error control type. If enabled, the intermediate result code is transmitted at the point during error control negotiation (handshaking) at which the modem has determined which error control protocol will be used (if any), before the final result code (e.g., CONNECT) is transmitted.

  • Page 49: Data Compression Commands

    Command Reference Manual 3.2.6 Data Compression Commands This section contains parameters to condition modem use of standard ITU-T V.42 bis Data Compression Procedures. 3.2.6.1 +DS - Data Compression This extended-format compound parameter controls the V.42bis data compression function if provided in the modem. It accepts four numeric subparameters: Syntax +DS=[<direction>[,<compr_neg>[,<max_dict>[,<max_string>]]]]...

  • Page 50: C - Enable/Disable Data Compression

    Command Reference Manual Reporting Supported Range of Parameter Values Command: +DR=? Response: +DR: (<value> range) Example: +DR: (0,1) +DR: <type> Intermediate Result Code The +DR: <type> reported represents the current (negotiated or renegotiated) modem-modem data compression type. If enabled, the intermediate result code is transmitted at the point after error control negotiation (handshaking) at which the modem has determined which data compression technique will be used (if any) and the direction of operation.

  • Page 51: N - Automode Enable

    Command Reference Manual 3.2.6.4 N - Automode Enable This command is included for compatibility only and has no effect other than returning a result code. The only valid values are 0-1. Syntax N[<mode>] Defined Values <mode > Decimal number corresponding to the selected value: 0-1. Result Codes <mode>...

  • Page 52: A8M - Send V.8 Menu Signals

    Command Reference Manual The ATD and ATA commands behave as specified in §6.3.1/V.25ter and §6.3.5/V.25ter, respectively, and +A8n indications are not generated by the modem. For subparameter values <v8o>=6 and <v8a>=5, the +A8I, +A8C, +A8A, +A8J, and +A8M indications are issued during the course of the V.8 session to notify the DTE when the relevant V.8 signals are received.

  • Page 53: A8C: - Calling Tone Indication

    Command Reference Manual 3.2.7.4 +A8C: - Calling Tone Indication This indication is issued by an answering modem, if +A8E,<v8a> 0, to indicate detection of 1100 Hz or 1300 Hz calling tones, or sigC signals, as defined in T.30, V.8 and in V.25. Indication Syntax +A8C: <type><CR>...

  • Page 54: A8J: - V.8 Negotiation Complete

    Command Reference Manual 3.2.7.6 +A8J: - V.8 Negotiation Complete This indication is issued by either modem when the negotiation is complete and CJ is sent or detected. An answering modem will issue this on detection of CJ from the remote terminal. A calling modem will send a CJ signal to the remote terminal at the same time as a +A8J indication.

  • Page 55: Table 3-2. V.8/V.8Bis Example Commands/Responses For Originator And Answerer

    Command Reference Manual Table 3-2. V.8/V.8bis Example Commands/Responses for Originator and Answerer 3-37 Conexant 1118...
  • Page 56 Command Reference Manual Table 3-2. V.8/V.8bis Example Commands/Responses for Originator and Answerer (Cont’d) 3-38 Conexant 1118...

  • Page 57: Synchronous Access Mode Commands

    Command Reference Manual 3.2.8 Synchronous Access Mode Commands 3.2.8.1 +ESA - Configure Synchronous Access Mode This extended-format compound parameter controls the manner of operation of the Synchronous Access Mode in the modem. Enabling Synchronous Access Mode enables the use of the 8-bit command characters defined in Table 9/V.80 of the Draft ITU-T Recommendation V.80 (DATA COMMUNICATION OVER THE TELEPHONE NETWORK;...

  • Page 58: Itf - Transmit Flow Control Thresholds

    Command Reference Manual Reporting Supported Range of Parameter Values Command: +ESA=? Response: +ESA: (<trans_idle> range), (<framed_idle> range),(<framed_un_ov> range), (<hd_auto> range), (<crc_type> range), (<nrzi_en> range),(<syn1> range), (<syn2> range) Example: +ESA: (0),(0),(0-1), ,(0),(0),(255) 3.2.8.2 +ITF - Transmit Flow Control Thresholds In V.80 Synchronous Access Mode, this optional compound parameter allows the DTE to determine the effective input buffer size in the modem for data on transmit data from the DTE, to control the thresholds used for flow control of such data, and to control how often the modem reports to the DTE the number of octets in this buffer.

  • Page 59: Diagnostic And Test Commands

    Command Reference Manual 3.2.9 Diagnostic and Test Commands 3.2.9.1 #UD – Last Call Status Report #UD is an action command requesting reporting of logged operation events. It does not take parameters and must be the last command in the command line. The modem logs aspects of their operation for each call, and saves these results until cleared by one of the following events: Power off Hard reset (e.g., negate DTR with &D3 set;...
  • Page 60 Command Reference Manual Command Syntax In response to this command, the modem will report one or more lines of information text as defined below. Information text format conforms to V.250; each line is preceded by a <CR><LF> pair, and terminated by <CR><LF>. (CR and LF characters may be changed by writing new values to the contents of registers S3 and S4, respectively.) The modem may generate a single line or multiple lines, followed by a standard OK final result code.

  • Page 61: Table 3-3. At#Ud Last Call Status Report Format

    Command Reference Manual Table 3-3. AT#UD Last Call Status Report Format Value(s) Definition 2 digits Diagnostic Command Specification revision number, digit.digit Table 3-4 Call Setup Result code Table 3-5 Multi-media mode Table 3-6 DTE-DCE interface mode String V.8 CM octet string, same format as V.250, in quotes String V.8 JM octet string, same format as V.250, in quotes 0-2F...

  • Page 62: Table 3-4. Call Setup Result Codes

    Command Reference Manual Table 3-4. Call Setup Result Codes Code Definition No previous call (modem log has been cleared since any previous calls) No dial tone detected Reorder signal detected, network busy Busy signal detected No recognized signal detected (e.g., no signal, or nothing recognizable) Voice detected * if this is a voice modem (e.g., V.253) operating in voice mode (e.g., +FCLASS=8.0) Data Answering signal detected (e.g., V.25 ANS, V.8 ANSam) Data Calling signal detected (e.g., V.25 CT, V.8 CI)

  • Page 63: Table 3-8. Gstnmodulationschemeactive From 3.7.2/V.58

    Command Reference Manual Table 3-8. gstnModulationSchemeActive from 3.7.2/V.58 Value Description V.17 (G3 Fax call) V.21 V.22 V.22bis V.23 Constant Carrier (1200/75) V.27ter (G3 Fax call) V.29 HD (G3 Fax call) V.32 V.32bis V.34 V.90 K56flex Bell 212A Bell 103 Table 3-9. errorControl Active from 3.5.2/V.58 Value Description Disable/none...

  • Page 64: Table 3-11. Callcleared Codes From 3.6.4/V.58-1994

    Command Reference Manual Table 3-11. callCleared codes from 3.6.4/V.58-1994 Value Description Notes CauseUnidentified Call setup issues No Previous call Not in V.58 Call is still in progress Not in V.58 Call Waiting signal detected Not in V.58, only if modem can detect it Delayed Same as value 2A, CallAttemptsLimitExceeded InactivityTimerExpired...

  • Page 65: Table 3-12. Completed Data Call, With Some Errors And Rate Retrain During The Call

    Command Reference Manual Example Modem Response and Usage Example #UD commend response are shown in Table 3-12. Table 3-12. Completed Data Call, with some errors and rate retrain during the call Modem Response line Description DIAG <2A4D3263 0=09> This is version 0.9 DIAG <2A4D3263 1=06 2=0 3=0>...

  • Page 66: Tt - Ptt Test Command

    Command Reference Manual 3.2.9.2 %TT - PTT Test Command This command facilitates PTT testing of signal levels by providing continuous signals regards of whether or not the modem is connected to the line. The signal transmitted is in accordance with the parameter provided. A range of commands allows the user to initiate a series of signals required to obtain PTT approval.
  • Page 67 Command Reference Manual %TT3x x corresponds to the selected MISC function (Silence, 2100Hz, 1300Hz, or 1100Hz). Silence 2100Hz Reserved 1300Hz 1100Hz Reserved %TT4x x corresponds to the selected FAX mode (V27@2400, V27@4800, V29@7200, V29@9600, V17@7200LT, V17@7200ST, V17@9600LT,V17@9600ST, V17@12000LT, V17@12000ST, V17@14400LT, or V17@14400ST). Reserved V27@2400 V27@4800...
  • Page 68 Command Reference Manual z = Pre-Emphasis Filter 0...A Pre-Emphasis Filter 0 Pre-Emphasis Filter 1 Pre-Emphasis Filter 2 Pre-Emphasis Filter 3 Pre-Emphasis Filter 4 Pre-Emphasis Filter 5 Pre-Emphasis Filter 6 Pre-Emphasis Filter 7 Pre-Emphasis Filter 8 Pre-Emphasis Filter 9 Pre-Emphasis Filter A Reserved 3-50 Conexant...

  • Page 69: S-Parameters

    Command Reference Manual 3.3 S-PARAMETERS The supported S-Parameters are summarized in Table 3-13. Table 3-13. S-Parameter Summary Register Function Units Number of Rings to Automatic Answer rings Ring Counter rings Escape Character ASCII Line Termination Character ASCII Response Formatting Character ASCII Command Line Editing Character ASCII...

  • Page 70: Sn - Read/Write S-Parameter

    Command Reference Manual 3.3.1.3 Sn - Read/Write S-Parameter The modem selects an S-Parameter, performs an S-Parameter read or write function, or reports the value of an S-Parameter. Establishes S-Parameter n as the last register accessed. Sets S-Parameter n to the value v. Reports the value of S-Parameter n.

  • Page 71: S3 - Line Termination Character

    Command Reference Manual 3.3.3.4 S3 - Line Termination Character S3 sets the decimal value of the command line and result code terminator character. Pertains to asynchronous operation only. Range: 0-127, ASCII decimal Default: 13 (Carriage Return) 3.3.3.5 S4 - Response Formatting Character S4 sets the decimal value of the character generated by the modem as part of the header, trailer, and terminator for result codes and information text, along with the S3 parameter (see the description of the V parameter for usage).

  • Page 72: S7 - Wait Time For Carrier After Dial, For Silence, Or For Dial Tone After "W" Dial Modifier

    Command Reference Manual 3.3.3.8 S7 - Wait Time For Carrier After Dial, For Silence, or For Dial Tone After “W” Dial Modifier S7 sets one of three possible parameters: Sets the length of time, in seconds, that the modem will wait for carrier before hanging up. The timer is started when the modem finishes dialing (originate), or after the billing delay in answer mode.

  • Page 73: S18 - Test Timer

    Command Reference Manual 3.3.3.13 S18 - Test Timer S18 sets the length of time, in seconds, that the modem conducts a test (commanded by &T1) before returning to the command mode. If this parameter value is zero, the test will not automatically terminate; the test must be terminated from the command mode by issuing an &T0 or H command.

  • Page 74: Cellular Commands

    Command Reference Manual 3.4 CELLULAR COMMANDS 3.4.1.1 +WS - Enable/Disable PDC The modem enables or disables PDC mode according to the parameter supplied. Syntax +WS=[value>] Defined Values <value> Decimal number corresponding to the selected option. Disables PDC mode. (Default.) Enables PDC mode. Result Codes <value>...

  • Page 75: Result Codes

    Command Reference Manual 3.5 RESULT CODES The modem responds to commands from the DTE and to activity on the line by signaling to the DTE in the form of result codes. The result codes that the modem can send are described in Table 3-14. Two forms of each result code are available: long-form, an English-like "verbose"...

  • Page 76: Table 3-14. Result Code Definitions

    Command Reference Manual Table 3-14. Result Code Definitions Code Message Meaning +FCERROR High speed fax data (V.27, V.29, V.33, or V.17) is expected but a V.21 signal is received. A command line has been executed. CONNECT For X command values specifying no speed reporting, the modem has connected to the line and either the line speed is 300 bps and line speed is enabled, or the DTE speed is 300 bps and DTE speed reporting is enabled.
  • Page 77 Command Reference Manual Table 3-14. Result Code Definitions (Cont’d) Code Message Meaning A fax modem connection is established in a facsimile mode. DATA A data modem connection is established in a facsimile mode. +MRR: 300 The modem has connected to the line at 300 bps and carrier reporting is enabled. (See S95 and Xn.) +MRR: 1200/75 The V.23 backward channel carrier is detected and carrier reporting is enabled.
  • Page 78 Command Reference Manual Table 3-14. Result Code Definitions (Cont’d) Code Message Meaning +MCR: V21 The modem has connected to the line with ITU-T V.21 modulation and modulation reporting is enabled. (See +MR, S95 and Xn.) +MCR: V22 The modem has connected to the line with ITU-T V.22 modulation and modulation reporting is enabled. (See +MR, S95 and Xn.) +MCR: V22B The modem has connected to the line with ITU-T V.22 bis modulation and modulation reporting is enabled.
  • Page 79 Command Reference Manual Table 3-14. Result Code Definitions (Cont’d) Code Message Meaning CONNECT 33333 The modem has connected to the line at 33333 bps and DCE SPEED reporting is enabled. CONNECT 34667 The modem has connected to the line at 34667 bps and DCE SPEED reporting is enabled. CONNECT 37333 The modem has connected to the line at 37333 bps and DCE SPEED reporting is enabled.
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  • Page 81: Fax Class 1 And Fax Class 1.0 Commands

    Command Reference Manual 4. FAX CLASS 1 AND FAX CLASS 1.0 COMMANDS 4.1 FAX I/O PROCESSING The fax I/O interface supports asynchronous serial and parallel interfaces. The character format is 8 bits data, no parity, and 1 stop bit. Start and stop elements are removed from the transmit data and added to the receive data. Both transmit and receive data are buffered.

  • Page 82: Fax Origination

    Command Reference Manual 4.1.4 Fax Origination Origination of fax calls is made using the ATD command. Upon completion of the dial function, a calling tone at 1100 Hz is transmitted, with a cadence of 0.5 seconds on and 3 seconds off. The modem automatically enters mode +FRH=3 and sends the CONNECT message to the DTE when FSK flags are detected from the remote.

  • Page 83: Fax Data Transmission

    Command Reference Manual receive buffer (if any) to the DTE, sends <DLE><ETX>, generates the ERROR message, and returns to command mode. All subsequent data received from the remote is discarded. If the modem detects a frame abort sequence (seven consecutive ones with no zero insertion) while it is waiting for a frame beginning flag (it was receiving HDLC flags), it will wait for the HDLC flags again until either carrier is lost, or the DTE aborts the process by sending an abort character or by dropping DTR with &D2 in effect.

  • Page 84: Commands And Parameters

    Command Reference Manual <DLE><ETX> followed by OK result code to the DTE, and returns to command mode. If the modem detects a DTR drop while &D3 is in effect, the modem performs a warm reset. 4.2 COMMANDS AND PARAMETERS 4.2.1 Mode Entry Commands 4.2.1.1 +FCLASS=1 - Select Facsimile Class 1 Mode +FCLASS=1 selects the Fax Class 1Mode.

  • Page 85: Frs - Receive Silence

    Command Reference Manual 4.2.2.3 +FRS - Receive Silence This command causes the modem to listen and report an OK result code when silence has been detected on the line for the specified period of time. This command will terminate when the required period of silence is detected or when the DTE sends the modem another character other than XON or XOFF, which is discarded.

  • Page 86: Frm - Receive Facsimile

    Command Reference Manual Result Codes CONNECT Reported when the modems begins the training sequence after receipt of a valid <mod> value. ERROR If the modem’s transmit buffer becomes empty and the last transmitted character is NUL (00), the modem continues to transmit NULs until the DTE sends more data or five seconds elapses. After five seconds elapse with a empty transmit buffer, the modem will turn off the transmit carrier, return to the command state, and report the ERROR result code.

  • Page 87: Fth - Transmit Data With Hdlc Framing

    Command Reference Manual 4.2.2.6 +FTH - Transmit Data with HDLC Framing This command causes the modem to transmit data using HDLC protocol and the modulation defined below. Syntax +FTH=<mod> Defined Values <mod> Decimal number corresponding to the selected modulation mode and data rates shown in Table 4-2. Result Codes CONNECT Reported for either of two conditions:...

  • Page 88: Service Class 1 Parameters

    Command Reference Manual Reporting Supported Range of Parameter Values Command: +FRH? Response: +FRH? Example: +FRH: 98 For V.17 9600 bps. Result Codes CONNECT Reported for either of two conditions: When the selected carrier is detected with an HDLC flag. If the DTE sends another +FTH=<MOD> command after sending the result code indicating frame reception is complete.

  • Page 89: Fcl - Carrier Loss Timeout

    Command Reference Manual 4.2.3.2 +FCL - Carrier Loss Timeout This parameter allows the DTE to select the modem’s loss-of-carrier delay between initial loss-of-carrier and qualified loss-of- carrier, when the modem will give up and exit a receive mode. Intermediate (less than FCL timeout) loss-of-carrier should be indicated by insertion of the SQ-BAD signal quality indicator in the received data stream.

  • Page 90: Fit - Dte Inactivity Timeout

    Command Reference Manual Reporting Supported Range of Parameter Values Command: +FDD=? Response: +FDD: (<value> range) Example: +FDD: (0) 4.2.3.4 FIT - DTE Inactivity Timeout This command specifies a DTE inactivity timeout value that allows the modem to break away from an unsuccessful connection attempt at any stage of a facsimile transfer.

  • Page 91: Fpr - Fixed Dte Rate

    Command Reference Manual 4.2.3.5 +FPR - Fixed DTE Rate This numeric extended-format parameter specifies the data rate at which the modem will accept commands during on-line operation. It may be used to select operation at rates at which the modem is not capable of automatically detecting the data rate being used by the DTE.

  • Page 92: Fmm - Request Model Identification

    Command Reference Manual 4.2.3.7 +FMM - Request Model Identification This command causes the modem to report the modem product model as provided by the .INF File. Syntax +FMM or +FMM Typical Response HCF 56K Data, Fax, Speakerphone, PCI Modem 4.2.3.8 +FMR - Request Revision Identification This command causes the modem to report the modem version, revision level, or date as provided by the .INF File.

  • Page 93: Table 4-4. Fax Class 1 Calling Sequence (Transmitting A Single Page)

    Command Reference Manual Table 4-4. Fax Class 1 Calling Sequence (Transmitting a Single Page) DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT+FCLASS=1 Set Class 1 ATDT<string> Dial and send CNG Answer Look for V.21 send CED, V.21 AT+FRH=3 Detect flags Send HDLC flags...

  • Page 94: Table 4-5. Fax Class 1 Answering Sequence (Receiving A Single Page)

    Command Reference Manual Table 4-5. Fax Class 1 Answering Sequence (Receiving a Single Page) DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT+FCLASS=1 Set Class 1 RING<- detect ringing dials [,send CNG] off-hook, AT+FRH=3 send CED, get CED, implied by answering with send V.21 carrier detect carrier...

  • Page 95: Voice Commands

    Command Reference Manual 5. VOICE COMMANDS 5.1 Voice Commands Overview Voice commands are identified in Table 5-1. Table 5-1. Voice Commands Command Function Configuration +FCLASS Set Mode +VCID Caller ID (CID) +VNH Automatic Hang-up control +FMI Manufacturer Identification +FMM Product Identification +FMR Version, Revision, etc.

  • Page 96: Dle> Shielded Event Codes Sent To The Dte

    Command Reference Manual 5.1.1 <DLE> Shielded Event Codes Sent to the DTE Table 5-2 lists the supported <DLE> shielded codes sent to the DTE in the expression <DLE><code>. The number in parenthesis in the second column corresponds to the T.50 equivalent. Table 5-2.

  • Page 97: Dle> Shielded Codes Sent To The Modem (Dce)

    Command Reference Manual 5.1.2 <DLE> Shielded Codes Sent to the Modem (DCE) Table 5-3 lists the supported <DLE> shielded codes sent to the modem in the expression <DLE><code>. The number in parenthesis in the second column corresponds to the T.50 equivalent. Table 5-3.

  • Page 98: Voice Commands

    Command Reference Manual 5.2 Voice Commands 5.2.1 Configuration Commands 5.2.1.1 +FCLASS=8 - Select Voice Mode +FCLASS=8 selects the Voice Mode. The Voice Mode commands and responses described in this section are applicable when command +FCLASS=8. (See Section 3.2.1.2 for the definition of the FCLASS command.) 5.2.1.2 +FCLASS=80 - Select VoiceView Mode +FCLASS=80 selects the VoiceView Mode.

  • Page 99: Voice Commands

    Command Reference Manual 5.2.2 Voice Commands 5.2.2.1 +VIP - Voice Initialize All Parameters This command causes the modem to initialize all voice parameters to their default values. Syntax +VIP Result Code ERROR If not in Voice Mode. 5.2.2.2 +VRX - Start Modem Receive (Record) This command causes the modem to start the voice reception process.

  • Page 100: Vts - Send Voice Tone(S)

    Command Reference Manual 5.2.2.4 +VTS - Send Voice Tone(s) This command causes the modem to send DTMF digit or hookflash tones with the duration specified by +VTD, to send DTMF digit or hookflash tones with duration specified by this command, or to send single or dual tone frequencies with duration specified with this command.
  • Page 101 Command Reference Manual Example 1. This example illustrates tone generation without using any null elements. The command example is followed by a description of command execution. AT+VTS= {!,30},1,2,[1000,1300,50],!,{*,6},[800,1300,50],9 Hookflash with a duration of 300 ms. Play DTMF 1 with a duration given by the +VTD command. Play DTMF 2 with a duration given by the +VTD command.

  • Page 102: Vtx - Start Modem Transmit (Playback)

    Command Reference Manual 5.2.2.5 +VTX - Start Modem Transmit (Playback) This command causes the modem to start the voice transmission process. Syntax +VTX Result Codes CONNECT The modem accepts the command. ERROR The modem is not connected to at least one off-hook telephone line or one non-telephone line. 5.2.2.6 +VGR - Voice Gain Receive (Record Gain) This command causes the modem to set the gain for received voice samples.

  • Page 103: Vit - Voice Inactivity Timer (Dte/Modem)

    Command Reference Manual 5.2.2.8 +VIT - Voice Inactivity Timer (DTE/Modem) This command sets the modem’s initial value for the DTE/modem inactivity timer. Syntax +VIT=<timer> Defined Values <timer> Decimal number(0 and 255) corresponding to the time in units of 1.0 second. A value of 0 disables the timer.

  • Page 104: Vls - Analog Source/Destination Selection

    Command Reference Manual 5.2.2.9 +VLS - Analog Source/Destination Selection This command causes the modem to select one or more source/destinations of the analog data. Syntax +VLS=<label> Defined Values <label> Decimal number corresponding to the selected option: Modem on-hook. Local phone connected to the line. Modem off-hook and connected to the line.
  • Page 105 Command Reference Manual 19 or 33 Unmute Speakerphone Speaker. Modem on-hook, local phone connected to the line, external speaker connected to the modem. Caller ID relay output active. Modem off-hook, local phone connected to the line, MIC_M routed to TXA. Typically used for music during handset conversation.

  • Page 106: Vra - Ringback Goes Away Timer

    Command Reference Manual 5.2.2.10 +VRA - Ringback Goes Away Timer This command sets the length of time the modem will wait between ringbacks during call origination before the modem can assume that the remote station has gone off hook. Syntax +VRA=<interval>...

  • Page 107: Vsd - Silence Detection (Quiet And Silence)

    Command Reference Manual 5.2.2.12 +VSD - Silence Detection (Quiet and Silence) This command causes the modem to set 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” (QUIT) or “Presumed Hangup (SILENCE) event reports.

  • Page 108: Vsm - Compression Method Selection

    Command Reference Manual 5.2.2.13 +VSM - Compression Method Selection This command causes the modem to set the voice compression method, the silence compression sensitivity, and the voice sampling rate. Syntax +VSM=<cml>,<vsr>,<sds>,<sel> Defined Values <cml> Decimal number identifying the compression method. <vsr>...

  • Page 109: Vtd - Beep Tone Duration Timer

    Command Reference Manual 5.2.2.14 +VTD - Beep Tone Duration Timer This command causes the modem to set the default DTMF/tone generation duration. Syntax +VTD=<dur> Defined Values <dur> Decimal number specifying the default DTMF/tone generation duration in units of 0.01 second. A value of 0 specifies a manufacturer specific time interval.

  • Page 110: Vdr - Distinctive Ring

    Command Reference Manual 5.2.2.15 +VDR - Distinctive Ring This command causes the modem to enable or disable reporting of the ring cadence information and to control the timing of the RING event code report if ring cadence reporting is enabled. Syntax +VDR=<enable>, <report>...

  • Page 111: Vdt - Control Tone Cadence Reporting

    Command Reference Manual 5.2.2.16 +VDT - Control Tone Cadence Reporting This command allows the modem to enable or disable reporting of the control tone cadence information in the frequency band used by the Ringback/Remote Ring, BUSY, and reorder/Fast Busy tones (usually in the 300to 600 Hz range). Syntax +VDT=<enable>,<report>...

  • Page 112: Vbt - Buffer Threshold Setting

    Command Reference Manual 5.2.2.17 +VBT - Buffer Threshold Setting This command causes the modem to report the <deassert> and <assert> subparameter values as a <compound ranges of values>. The OK result code follows the report. Syntax +VBT=<deassert>,<assert> Defined Values To be added Reporting Current or Selected Values Command: +VBT?

  • Page 113: Vpr - Select Dte/Modem Interface Rate (Turn Off Autobaud)

    Command Reference Manual 5.2.2.18 +VPR - Select DTE/Modem Interface Rate (Turn Off Autobaud) This command selects the DTE/modem interface rate. Syntax +VPR=<rate> Defined Values <rate>> Decimal number corresponding to the DTE/modem interface rate where 0 = autobaud rate determined by processing the AT command, and 1,2,3,4,8,16,24,48 correspond to multipliers of 2400 bps to determine the actual rate: 0 = Autobaud 1 = 2400 bps...

  • Page 114: Speakerphone Commands

    Command Reference Manual 5.2.3 Speakerphone Commands 5.2.3.1 +VSP - Speakerphone ON/OFF This command turns the speakerphone ON or OFF Syntax +VSP=<mode> Defined Values <mode> Decimal number corresponding to the selected option. The speakerphone function is OFF. The speakerphone function is ON. Reporting Current or Selected Values Command: +VSP?

  • Page 115: Vgm - Microphone Gain

    Command Reference Manual 5.2.3.3 +VGM - Microphone Gain This command causes the modem to set the microphone gain of the speakerphone function. Syntax +VGM=<gain> Defined Values <gain> Decimal number between 0 and 255 corresponding to the gain. Reporting Current or Selected Values Command: +VGM? Response:...
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  • Page 117: Index

    Command Reference Manual 6. INDEX +FCLASS=80 - Select VoiceView Mode +FDD - Double Escape Character Replacement #UD – Last Call Status Report 3-41 +FIT - DTE Inactivity Timeout 4-10 +FLO - Flow Control 4-12 +FMI - Request Manufacturer Identification 4-11 %C - Enable/Disable Data Compression 3-32 +FMM - Request Model Identification...
  • Page 118 Command Reference Manual S95 - Extended Result Codes Control 3-55 Sn - Read/Write S-Parameter 3-52 A - Answer 3-19 AT? - Read Selected S-Parameter 3-51 AT=x - Write to Selected S-Parameter 3-51 T - Set Tone Dial Default 3-18 D - Dial 3-17 V - Result Code Form E - Command Echo...
  • Page 119 INSIDE BACK COVER NOTES...
  • Page 120 Further Information Hong Kong literature@conexant.com Phone: (852) 2827 0181 1-800-854-8099 (North America) Fax: (852) 2827 6488 33-14-906-3980 (International) India Web Site Phone: (91 11) 692 4780 www.conexant.com Fax: (91 11) 692 4712 Korea World Headquarters Phone: (82 2) 565 2880 Conexant Systems, Inc.

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