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Command Reference Manual

1118

Conexant

1-1

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

RH56D-PCI Modem Device Set

RMH56D/RMS56 Modem Device Set

The descriptions in this manual apply to all commands and parameters that may be supported by different modem models.
Refer to Modem Software Release notes for commands applicable to specific modem models.

The commands and responses are implemented in host software for specific modem models. Additional configuration and
implementation information is available in release notes and/or readme files that accompany product software release. The
.INF File contains exact application unique information and default values.

This document supersedes Commands for SoftK56 Modems Reference Manual (Order No. 1163, Rev. 2, April 30, 1998) and
Commands for RH56D/RC56HCF and RH56LD Modems (Order No. 1118, Rev. 1, September 9, 1998).

1.1.1 Command Syntax

The fundamental DTE interface command syntax is described in Section 2.

1.1.2 Command Descriptions

These commands are grouped into the following categories:

Syntax and procedures

Section 2

Data commands

Section 3

Fax Class 1 and Fax Class 1.0 commands

Section 5

Voice/Audio commands

Section 5

1.2 REFERENCE DOCUMENTATION

RC56HCF-ISA Modem Device Set Designer’s Guide (Order No. 1123)

RC56HCF-PCI Modem Device Set Designer’s Guide (Order No. 1129)

RC56D-PCI Host Controlled V.90/K56flex Modem Device Family for Desktop Applications Designer’s Guide (Order No.

1174)

SoftK56-PCI Modem Device Set Designer's Guide (Order No. 1160)

SoftK56-PCI Host-Software Processed V.90/K56flex Modem Device Family for Desktop Applications Designer's Guide

(Order No. 1201)

RH56LD-PCI Host-Controlled V.90/K56flex Modem Device Family for Mobile Applications (Order No. 1164)

RS56L-PCI Host-Processed V.90/K56flex Modem Device Family for Mobile Applications (Order No. 1202)

RMH56LD/RMS56LD Host-Controlled/Processed V.90/K56flex Modem Device Family for Mobile Applications (Order No.

1203)

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Summary of Contents for H08-15350

Page 1: ...Doc No 1118 Rev 2 February 5 1999 RPPDQGV IRU RVW 3URFHVVHG DQG RVW RQWUROOHG 0RGHPV 5HIHUHQFH 0DQXDO ...

Page 2: ...xant products Conexant reserves the right to change circuitry at any time without notice This document is subject to change without notice K56flex is a trademark of Conexant Systems Inc and Lucent Technologies Conexant and What s Next in Communications Technologies are trademarks of Conexant Systems Inc Product names or services listed in this publication are for identification purposes only and m...

Page 3: ...ction Commands 2 4 2 4 3 1 Action Execution Command Syntax 2 4 2 4 3 2 Action Test Command Syntax 2 4 2 4 4 Parameter Commands 2 4 2 4 4 1 Parameter Types 2 4 2 4 4 2 Parameter Set Command Syntax 2 5 2 4 4 3 Parameter Read Command Syntax 2 5 2 4 4 4 Parameter Test Command Syntax 2 5 2 4 5 Additional Syntax Rules 2 5 2 4 5 1 Concatenating Commands after Extended Syntax Commands 2 5 2 4 5 2 Concaten...

Page 4: ... 2 11 IPR Fixed DTE Rate 3 15 3 2 2 12 IFC DTE Modem Local Flow Control 3 16 3 2 2 13 ILRR DTE Modem Local Rate Reporting 3 16 3 2 3 Call Control 3 17 3 2 3 1 D Dial 3 17 3 2 3 2 T Set Tone Dial Default 3 18 3 2 3 3 P Set Pulse Dial Default 3 19 3 2 3 4 A Answer 3 19 3 2 3 5 H Disconnect Hang Up 3 19 3 2 3 6 O Return to On Line Data Mode 3 20 3 2 3 7 L Speaker Volume 3 20 3 2 3 8 M Speaker Control...

Page 5: ...3 3 3 3 S2 Escape Character 3 52 3 3 3 4 S3 Line Termination Character 3 53 3 3 3 5 S4 Response Formatting Character 3 53 3 3 3 6 S5 Command Line Editing Character 3 53 3 3 3 7 S6 Wait Time for Dial Tone Before Blind Dialing or After W Dial Modifier 3 53 3 3 3 8 S7 Wait Time For Carrier After Dial For Silence or For Dial Tone After W Dial Modifier 3 54 3 3 3 9 S8 Pause Time For Dial Delay 3 54 3 3...

Page 6: ... Modem DCE 5 3 5 2 Voice Commands 5 4 5 2 1 Configuration Commands 5 4 5 2 1 1 FCLASS 8 Select Voice Mode 5 4 5 2 1 2 FCLASS 80 Select VoiceView Mode 5 4 5 2 1 3 VNH Automatic Hang up Control 5 4 5 2 2 Voice Commands 5 5 5 2 2 1 VIP Voice Initialize All Parameters 5 5 5 2 2 2 VRX Start Modem Receive Record 5 5 5 2 2 3 VTR Start Voice Transmission and Reception Voice Duplex 5 5 5 2 2 4 VTS Send Voi...

Page 7: ...ressionActive from 3 2 2 V 58 3 45 Table 3 11 callCleared codes from 3 6 4 V 58 1994 3 46 Table 3 12 Completed Data Call with some errors and rate retrain during the call 3 47 Table 3 13 S Parameter Summary 3 51 Table 3 14 Result Code Definitions 3 58 Table 4 1 Fax Class 1 and Fax Class 1 0 Commands 4 1 Table 4 2 Fax Class 1 and Fax Class 1 0 Modulation Modes and Rates 4 5 Table 4 3 Inactivity Tim...

Page 8: ...Command Reference Manual viii Conexant 1118 This page is intentionally blank ...

Page 9: ...rsedes Commands for SoftK56 Modems Reference Manual Order No 1163 Rev 2 April 30 1998 and Commands for RH56D RC56HCF and RH56LD Modems Order No 1118 Rev 1 September 9 1998 1 1 1 Command Syntax The fundamental DTE interface command syntax is described in Section 2 1 1 2 Command Descriptions These commands are grouped into the following categories Syntax and procedures Section 2 Data commands Sectio...

Page 10: ...Command Reference Manual Conexant 1118 1 2 This page is intentionally blank ...

Page 11: ...se issued will depend on the setting of parameters that affect response formats e g Q and V commands see 2 7 2 2 1 Command Line General Format A command line is made up of three elements the prefix the body and the termination character The command line prefix consists of the characters AT or at or to repeat the execution of the previous command line the characters A or a The body is made up of in...

Page 12: ...a single character number may be a string of one or more characters from 0 through 9 representing a decimal integer value Commands that expect a number are noted in the description of the command If a command expects number and it is missing command is immediately followed in the command line by another command or the termination character the value 0 is assumed If a command does not expect a numb...

Page 13: ...rough 9 inclusive Hexadecimal numeric constants consist of a sequence of one or more of the characters 0 through 9 inclusive and A through F inclusive The characters A through F represent the equivalent decimal values 10 through 15 Binary numeric constants consist of a sequence of one or more of the characters 0 and 1 In all numeric constants the most significant digit is specified first Leading 0...

Page 14: ...ave one subparameter name value The following syntax is used for actions that have two or more subparameters name compound_value For actions that accept subparameters if all subparameters are defined as being optional and the default values for all subparameters are satisfactory the data terminal equipment DTE may use the first syntax above i e omit the from the action execution command as well as...

Page 15: ...result code and terminates processing of the command line An ERROR is also generated if too many values are specified In case of an error all previous values of the parameter are unaffected 2 4 4 3 Parameter Read Command Syntax The DTE may determine the current value or values stored in a parameter by using the following syntax name The modem responds by sending the current values stored for the p...

Page 16: ... transmission of the termination character are ignored to allow for the DTE to append additional control characters such as line feed after the command line termination character To ensure that the aborting character is recognized by the modem it should be sent at the same rate as the preceding command line the modem may ignore characters sent at other rates When such an aborting event is recogniz...

Page 17: ...or NO CARRIER 3 Unsolicited result codes such as RING indicate the occurrence of an event not directly associated with the issuance of a command from the DTE 2 7 2 Extended Syntax Result Codes Extended syntax result codes may be issued in response to either basic or extended commands or both The appropriate responses are specified in the definitions of the commands the responses or both The genera...

Page 18: ...d it appears between the parentheses If more than one value is supported then the values may be listed individually separated by comma characters or when a continuous range of values is supported by the first value in the range followed by a hyphen character followed by the last value in the range The specification of single values and ranges of values may be intermixed within a single information...

Page 19: ...le to break into the data transmission in order to issue further commands to the modem in an on line command mode This is achieved by the DTE sending to the modem a sequence of three ASCII characters specified by register S2 The default character is The maximum time allowed between receipt of the last character of the three escape character sequence from the DTE and sending of the OK result code t...

Page 20: ...Parameter Values Command FCLASS Response FCLASS mode range Example FCLASS 0 1 1 0 8 80 3 2 1 3 VCID Caller ID CID This command controls the reporting and presentation of data associated with the Caller ID services in the U S and Canada in the Incoming Call Line ID ICLID data format Syntax VCID pmode Defined Values pmode Decimal number corresponding to the selected option 0 Disable Caller ID report...

Page 21: ... operates the same as N2 except failure to make a reliable connection results in the modem falling back to the speed buffered normal mode 4 Selects LAPM error correction mode and forces Q5 the modem will try to negotiate an error corrected link Failure to make an LAPM error correction connection results in the modem hanging up 5 Selects MNP error correction mode and forces Q5 the modem will try to...

Page 22: ...ed the modem hangs up The CONNECT XXXX message is displayed upon the start of the test 3 2 1 7 I Request Identification Information This command causes the modem to report one or more lines of product information text as selected by the value subparameter followed by a final result code Syntax I value Defined Values value Decimal number corresponding to the selected information 0 Reports product c...

Page 23: ...1 8 GMI Request Manufacturer Identification This command causes the modem to report the modem product manufacturer as provided by the INF File Syntax GMI Typical Response GMI Conexant OK 3 2 1 9 GMM Request Model Identification This command causes the modem to report the modem product model as provided by the INF File Syntax GMM Typical Response GMM HCF 56K Data Fax Speakerphone PCI Modem OK 3 2 1...

Page 24: ...e is provided by the INF file Syntax GOI Typical Response GOI OK 3 2 1 13 GCAP Request Complete Capabilities List This extended format command causes the modem to transmit one or more lines of information text listing additional capabilities command name s which is intended to permit the user to identify the overall capabilities of the modem In particular if the modem implements a particular modem...

Page 25: ...tion The modem may use hardware means to select the country of installation in which case the modem uses that to determine the default value Reporting Current or Selected Values Command GCI Response GCI current country_code Example GCI 3D Indicates that the modem is set for France Reporting Supported Range of Parameter Values Command GCI Response GCI country_code country_code country_code Example ...

Page 26: ...esult Codes OK value 0 or 1 ERROR Otherwise 3 2 2 4 W Connect Message Control This command in conjunction with S95 bits 0 2 3 and 5 bits 2 3 and 5 can be written directly by the host or by the MR ER and DR commands respectively control the format of CONNECT messages see Section 3 5 and Table 3 14 The actual result code messages reported reflect the W command setting and the S95 bit settings Also s...

Page 27: ...thout a speed indication Syntax X value Defined Values value Decimal number corresponding to the selected option 0 CONNECT result code is given upon entering online data state Dial tone and busy detection reporting are disabled 1 CONNECT text result code is given upon entering online data state Dial tone and busy detection reporting are disabled 2 CONNECT text result code is given upon entering on...

Page 28: ...CT 19200 1 x x x x 17 CONNECT 38400 1 x x x x 18 CONNECT 57600 1 x x x x 19 CONNECT 115200 1 x x x x 20 CONNECT 230400 x x x x x 22 CONNECT 75TX 1200RX 1 x x x x 23 CONNECT 1200TX 75RX 1 x x x x 24 DELAYED 4 4 4 4 x 32 BLACKLISTED 4 4 4 4 x 33 FAX x x x x x 35 DATA x x x x x 40 MRR 300 x x x x x 44 MRR 1200 75 x x x x x 45 MRR 75 1200 x x x x x 46 MRR 1200 x x x x x 47 MRR 2400 x x x x x 48 MRR 48...

Page 29: ...R B212 x x x x x 136 MCR V21 x x x x x 137 MCR V22 x x x x x 138 MCR V22B x x x x x 139 MCR V23 x x x x x 140 MCR V32 x x x x x 141 MCR V32B x x x x x 142 MCR V34 x x x x x 144 MCR K56 x x x x x 145 MCR V90 x x x x x 150 MRR 32000 x x x x x 151 MRR 34000 x x x x x 152 MRR 36000 x x x x x 153 MRR 38000 x x x x x 154 MRR 40000 x x x x x 155 MRR 42000 x x x x x 156 MRR 44000 x x x x x 157 MRR 46000 x...

Page 30: ...CONNECT 49333 x x x x x 192 CONNECT 50667 x x x x x 193 CONNECT 53333 x x x x x 194 CONNECT 54667 x x x x x 195 MRR 28000 x x x x x 196 MRR 29333 x x x x x 197 MRR 30667 x x x x x 198 MRR 33333 x x x x x 199 MRR 34667 x x x x x 200 MRR 37333 x x x x x 201 MRR 38667 x x x x x 202 MRR 41333 x x x x x 203 MRR 42667 x x x x x 204 MRR 45333 x x x x x 205 MRR 46667 x x x x x 206 MRR 49333 x x x x x 207 ...

Page 31: ... 0 or 1 ERROR Otherwise 3 2 2 7 D DTR Behavior This parameter determines how the modem responds when the Data Terminal Ready DTR input is changed from the ON to the OFF condition during online data state Syntax D value value 0 2 Defined Values value Decimal number corresponding to the selected option 0 Modem ignores DTR 1 Upon an on to off transition of DTR the modem enters online command state an...

Page 32: ... result code The only valid values are 0 3 Syntax M mode Defined Values mode Decimal number corresponding to the selected value 0 3 Result Codes OK mode 0 to 3 ERROR Otherwise 3 2 2 10 Q Sync Async Mode This command determines the DTR operating mode Also see N NOTE When the Q0 is issued to select the mode the subsequent connect message will report the DCE speed regardless of the W command and S95 ...

Page 33: ...t command line The rate specified does not apply in OnLine Data State if Normal Mode Direct Mode of operation is selected Syntax IPR rate Defined Values rate Specifies the DTE modem interface operation rate in bits s The available rates are 0 2400 4800 9600 19200 38400 or 57600 If unspecified or set to 0 automatic detection is selected and the character format is also forced to autodetect ICF 0 If...

Page 34: ... the flow of transmitted data from the DTE 0 None 1 XON XOFF on received data 2 CTS RTS Default Reporting Current or Selected Values Command IFC Response IFC modem_by_DTE DTE_by_modem Example IFC 2 2 for the defaults Reporting Supported Range of Parameter Values Command IFC Response IFC modem_by_DTE range DTE_by_modem range Example IFC 0 2 0 2 3 2 2 13 ILRR DTE Modem Local Rate Reporting This exte...

Page 35: ...andshake the modem will go on hook with the NO CARRIER response This command will be aborted upon receipt of any DTE character before completion of the handshake If FCLASS 1 or 1 0 is selected the modem will behave as a facsimile modem and attempt to connect to a facsimile machine or modem by entering the HDLC V 21 channel 2 receive state as if FRH 3 had been issued This command will be aborted up...

Page 36: ... abort the rest of the sequence return on hook and generate an error message Dial pause the modem will pause for a time specified by S8 before dialing the digits following Return to command state Added to the end of a dial string This causes the modem to return to the command state after it processes the portion of the dial string preceding the This allows the user to issue additional commands whi...

Page 37: ...SS 0 is selected the modem will enter the connect state after exchanging carrier with the remote modem If no carrier is detected within a period specified in register S7 the modem will hang up Any character entered during the connect sequence will abort the connection attempt If FCLASS 1 0 is selected the modem will go off hook in V 21 answer mode It will generate the V 21 2100 Hz answer tone for ...

Page 38: ...thout a retrain Handling is determined by the Call Establishment task Generally if a connection exists this command connects the DTE back to the remote modem after an escape 1 Performs a retrain then enters on line data mode from the on line command mode Result Codes OK value 0 or 1 and a connection exists ERROR Otherwise or no connection exists 3 2 3 7 L Speaker Volume This command sets the speak...

Page 39: ...ing answering Result Codes OK value 0 to 3 ERROR Otherwise 3 2 3 9 G Select Guard Tone This command is included for compatibility only and has no effect other than returning an OK result code Syntax G value n 0 2 Defined Values value Decimal number corresponding to the selected option 0 Included for compatibility only and has no effect other than returning an OK result code Default 1 Included for ...

Page 40: ...10 pulses per second Default 1 Selects 33 67 make break ratio at 10 pulses per second 2 Selects 39 61 make break ratio at 20 pulses per second 3 Selects 33 67 make break ratio at 20 pulses per second Result Codes OK value 0 to 3 ERROR Otherwise 3 2 3 11 V Display Current Configuration and Stored Profile This command reports the current active configuration and the stored user profiles Syntax V Res...

Page 41: ...w Permanently forbidden numbers as defined by country requirements will not appear on this list If no numbers are blacklisted only the OK result code is issued Example NO PHONE NUMBER 1 4175537660 2 8288924961 3 3887278862 4 3124839442 5 6284664 OK 3 2 3 14 D Display Delayed Numbers This command causes the modem to send a list of the delayed numbers together with the delay associated with each The...

Page 42: ...ng only of numeric digits and upper case letters carrier values for ITU standard modulations take the form letter 1 4 digits other letters as needed Defined values are listed in Table 3 1 automode A numeric value which enables or disables automatic modulation negotiation e g ITU T V 32bis Annex A or V 8 0 Automode disabled 1 Automode enabled Default min_rx_rate and max_rx_rate Numeric values which...

Page 43: ...ble 3 14 If enabled MCR carrier and MRR rate intermediate result codes represent the current negotiated or renegotiated modulation carrier and rate that are transmitted at the point during connect negotiation handshaking at which the modem has determined which modulation and rate will be used i e before any Error Control or Data Compression reports are transmitted and before any final result code ...

Page 44: ...in bits s Example MRR 28800 48000 3 2 4 3 E Enable Disable Line Quality Monitor Auto Retrain and Auto Rate Renegotiation This command controls whether or not the modem will automatically monitor the line quality and request a retrain E1 or a rate renegotiation when line quality merits a change If enabled the modem attempts to retrain for a maximum of 30 seconds Syntax E value Defined Values value ...

Page 45: ...Detection Phase Default 4 Initiate MNP 6 Initiate V 80 Synchronous Access Mode when connection is completed and Data State is entered See ESA and ITF commands orig_fbk Decimal number which specifies the acceptable fallback mode of operation when the modem is operating as the originator 0 LAPM MNP or Normal Mode error control optional Default 1 LAPM MNP or Direct Mode error control optional 2 LAPM ...

Page 46: ...nswerer Reporting Supported Range of Parameter Values Command ES Response ES orig_rqst range orig_fbk range ans_fbk range Example ES 0 4 6 0 4 0 6 8 3 2 5 2 EB Break Handling in Error Control Operation This extended format compound parameter controls the break handling in V 42 operation It accepts three numeric subparameters Syntax EB break_selection timed default_length Defined Values break_selec...

Page 47: ...ge Example EFCS 0 3 2 5 5 ER Error Control Reporting This extended format numeric parameter controls whether or not the extended format ER intermediate result code is transmitted from the modem to the DTE see Section 3 5 and Table 3 14 S95 bit 3 is reset to 0 for ER 0 and is set to a 1 for ER 1 The more recent setting of ER or S95 bit 3 and the W command setting determines the actual error control...

Page 48: ... Management This extended format compound parameter controls the handling of data remaining in modem buffers upon call termination It accepts three numeric subparameters Syntax ETBM pending_TD pending_RD timer Defined Values pending_TD Decimal number 0 specifying that disconnect will occur immediately and all buffered transmit data will be discarded when the local DTE requests call disconnection p...

Page 49: ... of the nature of the data to be transmitted max_string Specifies the maximum string length 32 bytes to be negotiated V 42bis P2 Reporting Current or Selected Values Command DS Response DS direction compr_neg max_dict max_string Example DS 3 0 2048 32 for the defaults and 2048 entry max dictionary Reporting Supported Range of Parameter Values Command DS Response DS direction range compr_neg range ...

Page 50: ... ER and before the final result code e g CONNECT The format of this result code is Result Code Syntax DR type Defined Values type An alphanumeric code corresponding to the selected option NONE Data compression is not in use V42B V 42bis is in use in both directions ALT MNP 5 compression Example DR V42B 3 2 6 3 C Enable Disable Data Compression Enables or disables data compression negotiation The m...

Page 51: ...o re start V 8 or V 8bis negotiation For example if initial V 8 negotiation failed but subsequent T 30 negotiation indicated V 8 capability this command may be used to initiate V 8 negotiation Syntax A8E v8o v8a v8cf v8b cfrange protrange Defined Values v8o Decimal number which enables disables issuance of A8x indications during modem controlled V 8 origination negotiation 1 Enable DCE controlled ...

Page 52: ...cfrange option bit range protrange option bit range Example A8E 1 6 1 5 1 0 1 6 1 3 2 7 2 A8M Send V 8 Menu Signals This command applicable only in DTE controlled V 8 directs the modem to send a V 8 CM or JM signal using the specified hexadecimal coded string If the modem can decode the menu octet string and if it cannot implement a specified feature the modem reports an ERROR final result code bu...

Page 53: ...cted Example A8C 1 For CNG tone detected 3 2 7 5 A8A Answer Signal Indication This indication is issued by a calling modem if A8E v8o 0 to indicate detection of an answering signal Indication Syntax A8A type CR Defined Values type CR Decimal number which indicates the corresponding detected answer signal 0 The modem timed out waiting for an answering signal 1 V 8 ANSam signal 2100 Hz with amplitud...

Page 54: ...Signal and Message Reporting If enabled by A8E v8b 2 command the modem monitors for V 8bis signals and messages and uses the A8R intermediate result code response to report that signal Two concatenated V 8bis messages are reported with two consecutive message indications Report Syntax A8R signal 1st message 2nd message CR Defined Values signal The V 8bis signal if detected is indicated using a sig...

Page 55: ... OI 211 7 FU OI 7 6 FU 7 6 FU 7 6 FU 7 6 FU 7 FU 7 FU FU OI 2 FU OI 7 FU 7 FU FU OI 2 FU OI 7 7 FU 7 7 FU FU OI 5 1 FU OI FU OI FU OI FU OI FU OI FU OI 0 FU OI FU OI 0 FU OI FU OI FU OI FU OI FU OI FU OI 211 7 FU OI FU OI 211 7 FU OI 7 6 FU 7 6 FU 7 6 FU 7 6 FU 7 FU 7 FU FU OI 2 FU OI 7 FU 7 FU FU OI 2 FU OI 7 7 FU 7 7 FU FU OI 5 1 FU OI FU OI FU OI FU OI FU OI FU OI 0 FU OI FU OI 0 FU OI FU OI FU...

Page 56: ...7 RPPDQG 0RGHP QVZHUHU 5HVSRQVH RU QGLFDWLRQ 2ULJLQDWLQJ 0RGHP WKDW 6HQGV D 3URWRFRO 2FWHW WKDW LQGLFDWHV 30 7 6 FU 7 6 FU 7 FU 7 FU FU OI 2 FU OI FU OI 5 1 FU OI FU OI FU OI FU OI 0 FU OI FU OI FU OI FU OI 12 55 5 FU OI 2ULJLQDWLQJ 0RGHP WKDW 6HQGV D 3URWRFRO 2FWHW WKDW LQGLFDWHV 30 7 6 FU 7 6 FU 7 FU 7 FU FU OI 2 FU OI FU OI 5 1 FU OI FU OI FU OI FU OI 0 FU OI FU OI FU OI FU OI 211 7 FU OI ...

Page 57: ..._un_ov Decimal number which specifies the actions undertaken by the modem when a transmit data buffer underrun or overrun condition occurs immediately after a non flag octet while operating in Framed sub Mode 0 In Framed sub Mode modem transmits abort on underrun in middle of frame Default 1 In Framed sub Mode modem transmits a flag on underrun in middle of frame and notifies DTE of underrun or ov...

Page 58: ...ess Mode The off range is 20 7000 Default off value is 128 For the on and off subparameters the input buffer is assumed to reside between the modem s V 24 interface and the Synchronous Access protocol layer i e the buffer count includes all octets including EM codes received from the DTE with the exception of XON and XOFF if these are used to signal modem by DTE flow control The modem returns the ...

Page 59: ...r e g set register S0 0 and ring detected These results are NOT cleared by changing DTR V 24 circuit 108 2 if D0 D1 or D2 Data Call State Model For purposes of this command there are four data call states and associated status issues Call Setup Calling DCE get dial tone generate dial digits detect call progress signals Answering DCE detect ringing detect CallerID etc Negotiation V 25 calling tone ...

Page 60: ... digit values are reported MSD first Leading 0 s may be deleted See examples in Table 3 12 Monitoring an active connection This command is intended for use after call termination However codes are defined so that a modem can respond before the first call is placed and during a call for live monitoring purposes For example key 60 call termination has value 1 defined indicating that the call is stil...

Page 61: ...rrier data rate 0 64000 in bit s 30 0 FF Temporary carrier loss event count 31 0 FF Carrier Rate re negotiation event count 32 0 FF Carrier Retrains requested 33 0 FF Carrier Retrain requests granted 34 0 FA00 Final transmit carrier data rate in bit s 35 0 FA00 Final receive carrier data rate in bit s 40 Table 3 9 Protocol Negotiation Result 41 0 400 Error Control frame size in bytes 42 0 FF Error...

Page 62: ...ignal detected e g V 25 CT V 8 CI 9 Fax Answering signal detected e g T 30 CED DIS A Fax Calling signal detected e g T 30 CNG B V 8bis signal detected Table 3 5 Multimedia Modes Code Definition 0 Data Only 1 Fax Only 2 Voice 3 VoiceView 9 Video telephony H 324 A Other V 80 call Table 3 6 DTE DCE modes Code Definition 0 Async data 1 V 80 transparent synchronous mode 2 V 80 framed synchronous mode T...

Page 63: ... V 23 Constant Carrier 1200 75 8 V 27ter G3 Fax call 9 V 29 HD G3 Fax call A V 32 B V 32bis C V 34 E V 90 81 K56flex 84 Bell 212A 85 Bell 103 Table 3 9 errorControl Active from 3 5 2 V 58 Value Description 0 Disable none 1 V 42 LAPM 2 V 42 Alternative protocol MNP 80 MNP10 Table 3 10 compressionActive from 3 2 2 V 58 Value Description 0 None 1 V 42bis 80 MNP5 ...

Page 64: ...ected If incoming call while sending dial command 2E LoopCurrentInterrupted 2F NoDialTone 31 ReorderTone Fast busy 33 EngagedTone Busy 34 LongSpaceDisconnect And if modem program to abort on long space 3C CarrierLost Signal Converter 3D TrainingFailed 3E NoModulationinCommon 3F RetrainFailed 40 RetrainAttemptCountExceeded 41 GstnCleardownReceived 42 FaxDetected If this was not a fax call attempt 4...

Page 65: ...63 21 D 25 1F40 27 DAC0 Receiver V 90 training completed V 90 symbol rate 8000 initial receive rate is 56000 bit s DIAG 2A4D3263 30 00 31 03 32 01 33 01 No carrier loss events 3 carrier rate renegotiations attempted 1 carrier retrain requested 1 carrier retrain granted DIAG 2A4D3263 34 7080 35 CB20 Final transmit rate is 28800 bit s final receive rate is 52000 bit s DIAG 2A4D3263 40 1 41 100 LAPM ...

Page 66: ...transmit the tone or carrier according to the parameter supplied Syntax TT0x x corresponds to the desired DTMF dial digit 0 1 2 3 4 5 6 7 8 9 A B C or D 0 Dial digit 0 1 Dial digit 1 2 Dial digit 2 3 Dial digit 3 4 Dial digit 4 5 Dial digit 5 6 Dial digit 6 7 Dial digit 7 8 Dial digit 8 9 Dial digit 9 A Dial digit B Dial digit C Dial digit A D Dial digit B E Dial digit C F Dial digit D TT1x x corr...

Page 67: ...0 2 V27 4800 3 V29 7200 4 V29 9600 5 V17 7200LT 6 V17 7200ST 7 V17 9600LT 8 V17 9600ST 9 V17 12000LT A V17 12000ST B V17 14400LT C V17 14400ST D F Reserved TT5xyz x corresponds to the desired V 34 bit rate 2400 4800 7200 9600 12000 14400 16800 19200 21600 24000 26400 28800 31200 or 33600 0 2400 1 4800 2 7200 3 9600 4 12000 5 14400 6 16800 7 19200 8 21600 9 24000 A 26400 B 28800 C 31200 D 33600 E F...

Page 68: ...Pre Emphasis Filter 0 1 Pre Emphasis Filter 1 2 Pre Emphasis Filter 2 3 Pre Emphasis Filter 3 4 Pre Emphasis Filter 4 5 Pre Emphasis Filter 5 6 Pre Emphasis Filter 6 7 Pre Emphasis Filter 7 8 Pre Emphasis Filter 8 9 Pre Emphasis Filter 9 A Pre Emphasis Filter A B F Reserved ...

Page 69: ...er Loss Disconnect Time 0 1 s S11 DTMF Tone Duration 0 001 s S12 Escape Prompt Delay 0 02 s S18 Test Timer s S29 Flash Dial Modifier Time 10 ms S30 Disconnect Inactivity Timer 10 s S46 Data Compression Control S95 Result Code Messages Control 3 3 1 1 AT x Write to Selected S Parameter This command writes the value x to the currently selected S Parameter An S Parameter can be selected by using the ...

Page 70: ... are read only In some cases writing to the S Parameter will appear to be accepted but the value will not actually be written 3 3 2 Factory Defaults The factory default values are stored in the Registry and are loaded into the active configuration at power up or by the Z command In addition the default profile is subsequently loaded and may change some of the factory default values The default val...

Page 71: ...elete from the command line the immediately preceding character The modem will not recognize the Command Line Editing character if it is set to a value that is greater than 32 ASCII This character can be used to edit a command line When the echo command is enabled the modem echoes back to the local DTE the Command Line Editing character an ASCII space character and a second Command Line Editing ch...

Page 72: ...s Default 2 3 3 3 10 S10 Lost Carrier To Hang Up Delay S10 sets the length of time in tenths of a second that the modem waits before hanging up after a loss of carrier This allows for a temporary carrier loss without causing the local modem to disconnect When register S10 is set to 255 the modem functions as if a carrier is always present The actual interval the modem waits before disconnecting is...

Page 73: ...tted will reset the timer The timer is inoperative in synchronous mode Range 0 255 tens of seconds 0 2550 seconds Default 0 disabled 3 3 3 16 S46 Data Compression Control S46 controls selection of compression The following actions are executed for the given values Range 136 or 138 Default 138 S46 136 Execute error correction protocol with no compression S46 138 Execute error correction protocol wi...

Page 74: ...ommands are effective in the PDC mode A Go off hook and start negotiation with remote equipment D Go off hook dial specified number and start negotiation with remote modem E Set DTE echo format according to specified parameter H Execute hang up sequence I Issue modem IDs O Enter online mode from command mode Sn Read or write S register values V Control result code output format W Control CONNECT m...

Page 75: ... Two forms of each result code are available long form an English like verbose response and short form a data like numeric response included in parentheses following the long form The long form code is preceded and terminated by the sequence CR LF The short form is terminated by CR only with no preceding sequence If result messages are suppressed nothing is returned to the DTE The long form result...

Page 76: ...BUSY For X3 and X4 if busy tone detection is enforced the busy engaged signal is detected on the line when the modem is attempting to originate a call 8 NO ANSWER The modem is attempting to originate a call if a continuous ringback signal is detected on the line until the expiration of the timer S7 9 CONNECT 600 The modem has connected to the line the DTE speed is 600 bps and DTE speed reporting i...

Page 77: ... to the line the DTE speed is 16800 bps and DTE speed reporting is enabled 61 CONNECT 21600 The modem has connected to the line the DTE speed is 21600 bps and DTE speed reporting is enabled 62 CONNECT 24000 The modem has connected to the line the DTE speed is 24000 bps and DTE speed reporting is enabled 63 CONNECT 26400 The modem has connected to the line the DTE speed is 26400 bps and DTE speed r...

Page 78: ...ing is enabled See S95 and Xn 158 MRR 48000 The modem has connected to the line at 48000 bps and carrier reporting is enabled See S95 and Xn 159 MRR 50000 The modem has connected to the line at 50000 bps and carrier reporting is enabled See S95 and Xn 160 MRR 52000 The modem has connected to the line at 52000 bps and carrier reporting is enabled See S95 and Xn 161 MRR 54000 The modem has connected...

Page 79: ...to the line at 30667 bps and carrier reporting is enabled See S95 and Xn 198 MRR 33333 The modem has connected to the line at 33333 bps and carrier reporting is enabled See S95 and Xn 199 MRR 34667 The modem has connected to the line at 34667 bps and carrier reporting is enabled See S95 and Xn 200 MRR 37333 The modem has connected to the line at 37333 bps and carrier reporting is enabled See S95 a...

Page 80: ...Command Reference Manual Conexant 1118 3 62 This page is intentionally blank ...

Page 81: ...of a frame by inserting DLE ETX into the data stream after the FCS bytes 4 1 3 Fax Mode Selection Fax Class 1 and Fax Class 1 0 commands are identified in Table 4 1 Fax Class 1 0 includes all Fax Class 1 commands Table 4 1 Fax Class 1 and Fax Class 1 0 Commands Command Parameter Function Applicable in Fax Class 1 Applicable in Fax Class 1 0 FCLASS class Select read or test service class X X FAE va...

Page 82: ...ps carrier goes on hook and generates the ERROR result code 4 1 7 Fax Control Reception Fax control reception is initiated using the AT FRH mod command After this command is issued the modem looks for carrier in the modulation scheme specified by the parameter n If no carrier is detected before the period of time specified by register S7 expires the modem generates the NO CARRIER message and retur...

Page 83: ...mitting the data to the remote Each DLE DLE sequence is transmitted as a single DLE DLE ETX is considered as the end of stream marker and is not transmitted All data received from the DTE after the DLE ETX is ignored by the modem until the modem generates either the CONNECT OK or ERROR result code If no more data is in the transmit buffer and the last transmitted character was not an ASCII NULL th...

Page 84: ... Auto Answer Enable This command enables or disables fax adaptive answer Syntax FAE value Defined Values value Decimal number corresponding to the selected option 0 Disable data fax auto answer mode Default 1 Enable data fax auto answer mode The modem determines the calling type and issues DATA result code 13 if the caller is a data modem or issues FAX result code 15 if the caller is a fax modem 4...

Page 85: ...e DTE sends the modem a character other than XON or XOFF ERROR value is invalid or this command is issued while the modem is on hook Reporting Supported Range of Parameter Values Command FRS Response FRS time range Example FRS 0 255 4 2 2 4 FTM Transmit Facsimile This command causes the modem to transmit data using the modulation defined below When a valid mod value is entered the modem transmits ...

Page 86: ...g Supported Range of Parameter Values Command FTM Response FTM mod range Example FTM 3 24 48 72 73 74 96 97 98 121 122 145 146 4 2 2 5 FRM Receive Facsimile This command causes the modem to enter the receiver mode using the modulation defined below Syntax FRM mod Defined Values mod Decimal number corresponding to the selected modulation mode and data rates shown in Table 4 2 Reporting Current or S...

Page 87: ...e seconds elapse from the time when the modem reported the CONNECT result code without any additional data transmitted from the DTE the modem then turns off carrier and returns to the command mode Reporting Current or Selected Values Command FTH Response FTH mod Example FTH 98 For V 17 9600 bps Reporting Supported Range of Parameter Values Command FTH Response FTH Example FTH 98 For V 17 9600 bps ...

Page 88: ...low control ERROR Reported if a frame was received in error 4 2 3 Service Class 1 Parameters 4 2 3 1 FAR Adaptive Reception Control If Adaptive Reception is enabled the modem adaptively detects the selected message carrier or V 21 control messages If the expected carrier is detected the modem operates as specified in the respective FRM mod or FRH mod commands If V 21 flag preamble is detected inst...

Page 89: ... carrier then the modem l immediately accepts the loss of carrier as qualified without waiting for the FCL timer to expire Write Syntax FCL time Defined Values value Decimal number representing the loss of carrier delay time in units of 100 ms The range is 0 255 Reporting Current or Selected Values Command FCL Response FCL time Example FCS 0 For the default setting Reporting Supported Range of Par...

Page 90: ...y timer related events are listed in Table 4 3 action The action parameter has two meanings 0 Upon timeout the modem will go on hook executing an implied ATH command then reset to FCLASS 0 1 Upon timeout the DCE will only go on hook Reporting Current or Selected Values Command FIT Response FIT time action Example FIT 0 0 For the default settings Reporting Supported Range of Parameter Values Comman...

Page 91: ...terface operation rate in bits s with a rate code The available rate codes are 0 Automatic detection default 1 2400 bits s executes IPR 2400 2 4800 bits s executes IPR 4800 4 9600 bits s executes IPR 9600 8 19200 bits s executes IPR 19200 10 38400 bits s executes IPR 38400 18 57400 bits s executes IPR 57400 If unspecified or set to 0 automatic detection is selected and the character format is also...

Page 92: ...ntrol turned off 1 Use XON XOFF flow control in either direction 2 Use RTS for flow control of the modem by the DTE use CTS for flow control of the DTE by the modem Reporting Current or Selected Values Command FLO Response FLO method Example FLO 0 For the default setting Reporting Supported Range of Parameter Values Command FLO Response FLO method range Example FLO 0 2 Result Codes OK method 0 2 E...

Page 93: ...tells the modem to expect another frame Final frame bit set tells the modem not to expect another frame AT FTS 8 FTM 96 TCF data pattern DLE ETX CONNECT OK wait 80 ms send V 29 carrier send TCF data drop carrier detect carrier get TCF data AT FRH 3 CONNECT CFR frame data DLE ETX OK detect carrier detect flags get CFR frame check FCS accept FCS send V 21 carrier send flags get CRF frame send FCS Fi...

Page 94: ...r DTE did not check final frame bit and issued FRH 3 AT FTM 96 CONNECT TCF data DLE ETX OK detect carrier receive TCF detect loss of carrier wait 75 ms send V 29 carrier send TCF data drop carrier AT FRH 3 CFR frame data DLE ETX CONNECT OK send V 21 carrier send flags get CRF frame send FCS drop carrier detect carrier detect flags receive CFR final frame AT FTM 96 CONNECT page image data DLE ETX N...

Page 95: ...nd Reception Duplex VTS Voice Tone Send Send single frequency or DTMF VTX Start Modem Transmit Playback VGR Voice Gain Receive Record Gain VGT Voice Gain Transmit Playback Volume VIT Voice Inactivity Timer DTE Modem VLS Analog Source Destination Selection VRA Ringback Goes Away Timer VRN Ringback Never Appeared Timer VSD Silence Detection QUIET SILENCE VSM Compression Method Selection VTD Beep Ton...

Page 96: ... 15 DTMF transitions to off R 5 2 Ring 1 3 1 DTMF 1 2 3 2 DTMF 2 3 3 3 DTMF 3 4 3 4 DTMF 4 5 3 5 DTMF 5 6 3 6 DTMF 6 7 3 7 DTMF 7 8 3 8 DTMF 8 9 3 9 DTMF 9 0 3 0 DTMF 0 A 4 1 Extended Keypad DTMF A B 4 2 Extended Keypad DTMF B C 4 3 Extended Keypad DTMF C D 4 4 Extended Keypad DTMF D 2 10 Extended Keypad DTMF E 2 3 Extended Keypad DTMF F o 6 15 Receive Buffer Overrun c 6 3 Facsimile Calling e 6 5 ...

Page 97: ...0 Two contiguous DLE DLE codes indicate a single DLE in the data stream Immediate Command or Stream Command u 7 5 Action Numbers 0 and 3 Increase the volume or gain by one unit Immediate Command d 6 4 Action Numbers 1 and 4 Decrease the volume or gain by one unit Immediate Command p 7 0 Action Number 9 Pause r 7 2 Action Number 10 Resume ETX 0 3 Action Number 11 End Voice Transmit State Stream Com...

Page 98: ...nition of the FCLASS command 5 2 1 3 VNH Automatic Hang up Control This command enables or disables automatic hangups Syntax VNH hook Defined Values hook Decimal number corresponding to the selected option 0 The modem enables automatic hangups as is normal in other modes 1 The modem disables automatic hangups usually found in the other non Voice Modes 2 The modem disables automatic hangups in the ...

Page 99: ...returning the CONNECT result code to the DTE The modem then sends DLE shielded voice data to the DTE and the DTE can send DLE shielded voice data to the modem The modem will accept data from the DTE and send data to the DTE in the format previously selected by the VSM command and use the flow control method selected by the IFC command The modem signals termination of the voice data stream by appen...

Page 100: ...e used to send single or dual tones The first element is the first frequency freq1 with range 0 or 200 3000 Hz The second element is the second frequency freq2 with range 0 or 200 3000 Hz The third element is the duration dur in 0 01 second intervals with range 0 255 ASCII units of 10 ms A list may contain null elements For example 3000 means that the DCE generates a single tone at 3000 Hz for the...

Page 101: ... illustrates tone generation using null elements The command example is followed by a description of command execution AT VTS 1 2 1000 1300 50 800 9 1 Play DTMF 1 with a duration given by the VTD command 2 Play DTMF 2 with a duration given by the VTD command 3 Play tone pair at 1000 Hz and 1300 Hz with a duration of 500 ms 4 Play tone pair at 800 Hz with a duration given by the VTD command 5 Play ...

Page 102: ...Current or Selected Values Command VGR Response VGR gain Example VGR 0 For the default setting Reporting Supported Range of Parameter Values Command VGR Response VGR gain range Example VGR 0 255 Result Codes OK gain 0 255 ERROR Otherwise or if not in Voice Mode 5 2 2 7 VGT Voice Gain Transmit Playback Volume This command causes the modem to set the volume level Syntax VGT level Defined Values leve...

Page 103: ...Values timer Decimal number 0 and 255 corresponding to the time in units of 1 0 second A value of 0 disables the timer Reporting Current or Selected Values Command VIT Response VIT timer Example VIT 0 For the default setting Reporting Supported Range of Parameter Values Command VIT Response VIT timer range Example VIT 0 255 Result Codes OK timer 0 255 ERROR Otherwise or if not in Voice Mode ...

Page 104: ...e Modem Modem on hook Local phone connected to the line 9 External Speaker connected to the line Modem off hook and connected to the line Local phone provided with power to detect hook condition 10 Internal Microphone and External Speaker connected to the line Squelching active Modem off hook and connected to the line Local phone provided with power to detect hook condition 11 External Microphone ...

Page 105: ...Typically used to play greeting from audio codec 131 Modem off hook local phone connected to the line external speaker connected to the line Typically used for recording a handset conversation through a sound card Notes 1 Internal and External Microphone are treated the same by the Modem device set 2 Internal and External Speaker are treated the same by the Modem device set Reporting Current or Se...

Page 106: ...ameter Values Command VRA Response VRA interval range Example VRA 0 255 Result Codes OK interval 0 255 ERROR Otherwise or if not in Voice Mode 5 2 2 11 VRN Ringback Never Appeared 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 VRN interval Defined Values interval D...

Page 107: ...ion independent of presence or use of silence compression 128 Sets nominal long term silence detection independent of presence or use of silence compression 129 Sets more aggressive long term silence detection independent of presence or use of silence compression sdi Decimal number specifying the required period of silence in units of 0 1 second before the modem can report silence detected at the ...

Page 108: ... identifying the compression method 1 128 to 133 cmid Alphanumeric string describing the compression method UNSIGNED PCM 8 BIT LINEAR ADPCM ULAW ALAW or LINEAR bps Decimal number defining the average number of bits in the compressed sample not including silence compression 4 8 or 16 tm Decimal number 0 reporting the time interval in units of 0 1 second between timing marks A value of 0 reports tha...

Page 109: ...t DTMF tone generation duration in units of 0 01 second A value of 0 specifies a manufacturer specific time interval The range is 0 01 to 5 seconds for dur 1 to 500 Reporting Current or Selected Values Command VTD Response VTD dur Example VTD 0 For the default setting Reporting Supported Range of Parameter Values Command VTD Response VTD dur range Example VTD 0 500 Result Codes OK dur 0 500 ERROR ...

Page 110: ...ing cadence information report when enabled by the enable subparameter 0 The modem will produce only DROF and DRON messages The modem will not produce any RING event codes The modem will report other call progress event codes as normal Other The modem will produce only DROF and DRON messages The modem will produce a RING event code after report 10 seconds after the falling edge of the ring pulse i...

Page 111: ...ot produce any control tone cadence report 1 The modem will produce control tone cadence report as specified for the report subparameter report Decimal number specifying the produced any control tone cadence report when enabled by the enable subparameter 0 The modem will produce only CPOF and CPON messages Other Reserved Reporting Current or Selected Values Command VDT Response VDT enable report E...

Page 112: ...t code follows the report Syntax VBT deassert assert Defined Values To be added Reporting Current or Selected Values Command VBT Response VBT deassert assert Example VBT TBD For the default setting Reporting Supported Range of Parameter Values Command VBT Response VBT deassert range assert range Example VBT 820 4096 6144 7372 8192 Result Codes OK deassert assert 0 or 1 ERROR Otherwise or if not in...

Page 113: ...e 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 2 4800 bps 3 7200 bps 4 9600 bps 8 19200 bps 16 38400 bps 24 57600 bps 48 115200 bps Reporting Current or Selected Values Command VPR Response rate Example 0 For the default setting Autobaud Reporting Supported Range of Parameter Values Command VPR Response rate range Exampl...

Page 114: ...Command VSP Response VSP mode range Example VSP 0 1 Result Codes OK mode 0 or 1 ERROR Otherwise or if not in Voice Mode 5 2 3 2 VDX Speakerphone Duplex Mode This command selects speakerphone half duplex or full duplex mode Syntax VDX mode Defined Values mode Decimal number corresponding to the selected option 0 The speakerphone mode is half duplex 1 The speakerphone mode is full duplex Reporting C...

Page 115: ...in range Example VGM 0 255 Result Codes OK gain 0 255 ERROR Otherwise or if not in Voice Mode with speakerphone enabled VSP 1 5 2 3 4 VGS Speaker Gain This command causes the modem to set the speaker gain of the speakerphone function Syntax VGS gain Defined Values gain Decimal number between 0 and 255 corresponding to the gain Reporting Current or Selected Values Command VGS Response VGS gain Exam...

Page 116: ...Command Reference Manual Conexant 1118 5 22 This page is intentionally blank ...

Page 117: ...DD Double Escape Character Replacement 4 9 FIT DTE Inactivity Timeout 4 10 FLO Flow Control 4 12 FMI Request Manufacturer Identification 4 11 FMM Request Model Identification 4 12 FMR Request Revision Identification 4 12 FPR Fixed DTE Rate 4 11 FRH Receive Data with HDLC Framing 4 7 FRM Receive Data 4 6 FRS Receive Silence 4 5 FTH Transmit Data with HDLC Framing 4 7 FTM Transmit Facsimile 4 5 FTS ...

Page 118: ... DTMF Tone Duration 3 54 S12 Escape Prompt Delay EPD 3 54 S18 Test Timer 3 55 S2 Escape Character 3 52 S29 Flash Dial Modifier Time 3 55 S3 Line Termination Character 3 53 S30 Disconnect Inactivity Timer 3 55 S4 Response Formatting Character 3 53 S46 Data Compression Control 3 55 S5 Command Line Editing Character 3 53 S6 Wait Time for Dial Tone Before Blind Dialing or After W Dial Modifier 3 53 S7...

Page 119: ...INSIDE BACK COVER NOTES ...

Page 120: ...lia Phone 61 2 9869 4088 Fax 61 2 9869 4077 China Phone 86 2 6361 2515 Fax 86 2 6361 2516 Hong Kong Phone 852 2827 0181 Fax 852 2827 6488 India Phone 91 11 692 4780 Fax 91 11 692 4712 Korea Phone 82 2 565 2880 Fax 82 2 565 1440 Europe Headquarters Conexant Systems France Les Taissounieres B1 1680 Route des Dolines BP 283 06905 Sophia Antipolis Cedex France Phone 33 4 93 00 33 35 Fax 33 4 93 00 33 ...

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