AT Commands for SmartSCM,
SmartACF, and SmartACFL
Modems
Reference Manual
Conexant Proprietary Information
Doc. No. 100722A
November 2, 2000
Command Reference Manual
Revision Date Comments
A 11/2/2000 Initial release.
© 2000,
All Rights Reserved.
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Contents
1. INTRODUCTION ............................................................................................................................................................... 1-1
1.1 OVERVIEW ............................................................................................................................................................ 1-1
1.1.1 Command Syntax....................................................................................................................................... 1-1
1.1.2 Command Descriptions.............................................................................................................................. 1-1
1.1.3 Call Progress and Blacklisting Parameters ................................................................................................ 1-1
1.1.4 ConfigurACE II for Windows Utility Program.............................................................................................. 1-2
1.2 REFERENCE DOCUMENTATION......................................................................................................................... 1-2
2. SYNTAX AND PROCEDURES ......................................................................................................................................... 2-1
2.1 Alphabet ................................................................................................................................................................. 2-1
2.2 DTE Commands Lines ........................................................................................................................................... 2-1
2.2.1 Command Line General Format................................................................................................................. 2-1
2.2.2 Command Line Editing............................................................................................................................... 2-1
2.2.3 Command Line Echo.................................................................................................................................. 2-1
2.2.4 Repeating a Command Line ...................................................................................................................... 2-2
2.2.5 Types of DTE Commands .......................................................................................................................... 2-2
2.3 Basic Syntax Commands ....................................................................................................................................... 2-2
2.3.1 Basic Syntax Command Format................................................................................................................. 2-2
2.3.2 S-Parameters ............................................................................................................................................. 2-2
2.4 Extended Syntax Commands................................................................................................................................. 2-3
2.4.1 Command Naming Rules ........................................................................................................................... 2-3
2.4.2 Values ........................................................................................................................................................ 2-3
2.4.2.1 Numeric Constants .................................................................................................................... 2-3
2.4.2.2 String Constants ........................................................................................................................ 2-3
2.4.2.3 Compound Values ..................................................................................................................... 2-4
2.4.3 Action 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 Concatenating Commands after Basic Format Commands....................................................... 2-5
2.5 Issuing Commands................................................................................................................................................. 2-6
2.6 Executing Commands ............................................................................................................................................ 2-6
2.6.1 Aborting Commands .................................................................................................................................. 2-6
2.6.2 Handling of Invalid Numbers and S-Parameter Values.............................................................................. 2-6
2.7 Modem Responses................................................................................................................................................. 2-6
2.7.1 Responses ................................................................................................................................................. 2-7
2.7.2 Extended Syntax Result Codes.................................................................................................................. 2-7
2.7.3 +<name>: <compound_value>Information Text Formats for Test Commands.......................................... 2-8
2.7.3.1 Range of Values ........................................................................................................................ 2-8
2.7.3.2 Compound Range of Values...................................................................................................... 2-8
3. DATA COMMAND SET..................................................................................................................................................... 3-1
3.1 COMMAND GUIDELINES...................................................................................................................................... 3-1
3.1.1 Escape Code Sequence ............................................................................................................................ 3-1
3.2 DATA COMMANDS................................................................................................................................................ 3-1
3.2.1 Generic Modem Control ............................................................................................................................. 3-1
3.2.1.1 Z - Soft Reset and Restore Profile ............................................................................................. 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 +VRID - Report Retrieved Caller ID (CID).................................................................................. 3-3
3.2.1.5 \N - Operating Mode................................................................................................................... 3-3
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3.2.1.6 -SMS= - Select Mode................................................................................................................. 3-4
3.2.1.7 I - Identification........................................................................................................................... 3-5
3.2.1.8 +GMI - Request Manufacturer Identification .............................................................................. 3-5
3.2.1.9 +GMI9 - Request Conexant Identification ..................................................................................3-6
3.2.1.10 +GMM - Request Model Identification........................................................................................ 3-6
3.2.1.11 +GMR - Request Revision Identification .................................................................................... 3-6
3.2.1.12 +GCAP - Request Complete Capabilities List............................................................................ 3-7
3.2.1.13 +GCI - Country of Installation..................................................................................................... 3-8
3.2.1.14 &F - Restore Factory Configuration (Profile).............................................................................. 3-9
3.2.1.15 &T - Local Analog Loopback Test.............................................................................................. 3-9
3.2.1.16 &Y - Designate a Default Reset Profile...................................................................................... 3-9
3.2.1.17 &W - Store Current Configuration ............................................................................................ 3-10
3.2.1.18 &Zn=x - Store Telephone Number ........................................................................................... 3-10
3.2.1.19 %7 - Plug and Play Serial Number........................................................................................... 3-10
3.2.1.20 %8 - Plug and Play Vendor ID and Product Number ............................................................... 3-11
3.2.1.21 **- Load Flash Memory ............................................................................................................ 3-11
3.2.2 DTE-Modem Interface commands ........................................................................................................... 3-12
3.2.2.1 E - Command Echo.................................................................................................................. 3-12
3.2.2.2 Q - Quiet Results Codes Control.............................................................................................. 3-13
3.2.2.3 V - Result Code Form .............................................................................................................. 3-13
3.2.2.4 W - Connect Message Control................................................................................................. 3-13
3.2.2.5 X - Extended Result Codes...................................................................................................... 3-14
3.2.2.6 &C - RLSD (DCD) Option......................................................................................................... 3-18
3.2.2.7 &D - DTR Option ...................................................................................................................... 3-18
3.2.2.8 &K - Flow Control..................................................................................................................... 3-19
3.2.2.9 &M - Asynchronous/Synchronous Mode Selection.................................................................. 3-19
3.2.2.10 &Q - Sync/Async Mode............................................................................................................ 3-20
3.2.2.11 &R - RTS/CTS Option .............................................................................................................. 3-20
3.2.2.12 &S - DSR Override................................................................................................................... 3-21
3.2.2.13 &X - Select Synchronous Clock Source................................................................................... 3-21
3.2.2.14 +IPR - Fixed DTE Rate ............................................................................................................ 3-22
3.2.2.15 +IFC - DTE-Modem Local Flow Control................................................................................... 3-23
3.2.2.16 +ILRR - DTE-Modem Local Rate Reporting............................................................................. 3-23
3.2.3 Call Control .............................................................................................................................................. 3-24
3.2.3.1 D - Dial ..................................................................................................................................... 3-24
3.2.3.2 T - Set Tone Dial Default.......................................................................................................... 3-26
3.2.3.3 P - Set Pulse Dial Default......................................................................................................... 3-26
3.2.3.4 A - Answer................................................................................................................................ 3-26
3.2.3.5 H - Disconnect (Hang-Up)........................................................................................................ 3-26
3.2.3.6 O - Return to On-Line Data Mode ............................................................................................ 3-27
3.2.3.7 L - Speaker Volume ................................................................................................................. 3-27
3.2.3.8 M - Speaker Control................................................................................................................. 3-28
3.2.3.9 &G - Select Guard Tone........................................................................................................... 3-28
3.2.3.10 &P - Select Pulse Dial Make/Break Ratio ................................................................................ 3-29
3.2.3.11 &V - Display Current Configuration and Stored Profiles .......................................................... 3-29
3.2.3.12 &V1 - Display Last Connection Statistics................................................................................. 3-30
3.2.3.13 \V - Single Line Connect Message Enable............................................................................... 3-31
3.2.3.14 %L - Report Line Signal Level.................................................................................................. 3-31
3.2.3.15 %Q - Report Line Signal Quality .............................................................................................. 3-32
3.2.3.16 *B - Display Blacklisted Numbers............................................................................................. 3-32
3.2.3.17 *D - Display Delayed Numbers ................................................................................................ 3-32
3.2.3.18 –PPD= - Extension Pickup Notification through 16550 UART ................................................. 3-33
3.2.3.19 –STE= - Set Telephony Extension........................................................................................... 3-33
3.2.4 Modulation Control Commands................................................................................................................ 3-37
3.2.4.1 +MS - Modulation Selection ..................................................................................................... 3-37
3.2.4.2 +MR - Modulation Reporting Control........................................................................................ 3-38
3.2.4.3 %E - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward............ 3-39
3.2.4.4 %U - Select µ-Law or A-Law Codec Type................................................................................ 3-40
3.2.4.5 B - CCITT or Bell...................................................................................................................... 3-40
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3.2.5 Error Control Commands ......................................................................................................................... 3-41
3.2.5.1 +ES - Error Control and Synchronous Mode Selection............................................................ 3-41
3.2.5.2 +EB - Break Handling in Error Control Operation .................................................................... 3-42
3.2.5.3 +ESR - Selective Repeat ......................................................................................................... 3-43
3.2.5.4 +EFCS - 32-bit Frame Check Sequence ................................................................................. 3-43
3.2.5.5 +ER - Error Control Reporting.................................................................................................. 3-44
3.2.5.6 +ETBM - Call Termination Buffer Management ....................................................................... 3-45
3.2.5.7 \B - Transmit Break to Remote................................................................................................. 3-45
3.2.5.8 \K - Break Control..................................................................................................................... 3-46
3.2.5.9 -K - MNP Extended Services.................................................................................................... 3-47
3.2.6 Data Compression Commands ................................................................................................................ 3-47
3.2.6.1 +DS - Data Compression ......................................................................................................... 3-47
3.2.6.2 +DR - Data Compression Reporting ........................................................................................ 3-48
3.2.6.3 %C - Enable/Disable Data Compression ................................................................................. 3-49
3.2.7 V.8/V.8bis Commands ............................................................................................................................. 3-50
3.2.7.1 +A8E - V.8 and V.8bis Operation Controls .............................................................................. 3-50
3.2.7.2 +A8I: - CI Signal Indication ...................................................................................................... 3-51
3.2.8 Synchronous Access Mode Commands .................................................................................................. 3-51
3.2.8.1 +ESA - Configure Synchronous Access Submode .................................................................. 3-52
3.2.8.2 +H - Enable/Disable RPI and Host DSVD................................................................................ 3-53
3.2.8.3 +ITF - Transmit Flow Control Thresholds................................................................................. 3-54
3.2.9 Diagnostic Commands ............................................................................................................................. 3-55
3.2.9.1 #UD – Last Call Status Report................................................................................................. 3-55
3.2.10 Compatibility Commands ......................................................................................................................... 3-62
3.2.10.1 &L - Leased Line Operation ..................................................................................................... 3-62
3.2.10.2 )M - Enable Cellular Power Level Adjustment.......................................................................... 3-62
3.2.10.3 @M - Initial Cellular Power Level Setting................................................................................. 3-62
3.2.10.4 :E - Compromise Equalizer Enable Command ........................................................................ 3-63
3.2.11 FastConnect Commands ......................................................................................................................... 3-63
3.2.11.1 $F – FastConnect Control........................................................................................................ 3-63
3.3 S-PARAMETERS ................................................................................................................................................. 3-64
3.3.1.1 S - Read/Write S-Parameter .................................................................................................... 3-64
3.3.2 FACTORY DEFAULTS............................................................................................................................. 3-64
3.3.3 S-PARAMETER DEFINITIONS................................................................................................................ 3-66
3.3.3.1 S0 - Number of Rings to Auto-Answer ..................................................................................... 3-66
3.3.3.2 S1 - Ring Counter .................................................................................................................... 3-66
3.3.3.3 S2 - Escape Character............................................................................................................. 3-66
3.3.3.4 S3 - Carriage Return Character ............................................................................................... 3-66
3.3.3.5 S4 - Line Feed Character......................................................................................................... 3-66
3.3.3.6 S5 - Backspace Character ....................................................................................................... 3-66
3.3.3.7 S6 - Wait Time before Blind Dialing or for Dial Tone ............................................................... 3-67
3.3.3.8 S7 - Wait Time for Carrier, Silence, or Dial Tone..................................................................... 3-67
3.3.3.9 S8 - Pause Time For Dial Delay............................................................................................... 3-67
3.3.3.10 S9 - Carrier Detect Response Time......................................................................................... 3-67
3.3.3.11 S10 - Lost Carrier To Hang Up Delay ...................................................................................... 3-67
3.3.3.12 S11 - DTMF Tone Duration...................................................................................................... 3-68
3.3.3.13 S12 - Escape Prompt Delay (EPD) .......................................................................................... 3-68
3.3.3.14 S14 - General Bit Mapped Options Status............................................................................... 3-68
3.3.3.15 S16 - Test Mode Bit Mapped Options Status........................................................................... 3-69
3.3.3.16 S19 - Reserved ........................................................................................................................ 3-69
3.3.3.17 S20 - Reserved ........................................................................................................................ 3-69
3.3.3.18 S21 - V.24/General Bit Mapped Options Status....................................................................... 3-69
3.3.3.19 S22 - Speaker/Results Bit Mapped Options Status ................................................................. 3-70
3.3.3.20 S23 - General Bit Mapped Options Status............................................................................... 3-70
3.3.3.21 S24 - Sleep Inactivity Timer ..................................................................................................... 3-70
3.3.3.22 S25 - Delay To DTR Off ........................................................................................................... 3-70
3.3.3.23 S26 - RTS to CTS Delay .......................................................................................................... 3-71
3.3.3.24 S27 - Bit Mapped Options Status............................................................................................. 3-71
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3.3.3.25 S28 - Bit Mapped Options Status............................................................................................. 3-71
3.3.3.26 S29 - Flash Dial Modifier Time................................................................................................. 3-72
3.3.3.27 S30 - Disconnect Inactivity Timer............................................................................................. 3-72
3.3.3.28 S31 - Bit Mapped Options Status............................................................................................. 3-72
3.3.3.29 S36 - LAPM Failure Control ..................................................................................................... 3-72
3.3.3.30 S38 - Delay Before Forced Hang Up .......................................................................................3-73
3.3.3.31 S39 - Flow Control Bit Mapped Options Status........................................................................ 3-73
3.3.3.32 S40 - General Bit Mapped Options Status............................................................................... 3-73
3.3.3.33 S41 - General Bit Mapped Options Status............................................................................... 3-74
3.3.3.34 S46 - Data Compression Control ............................................................................................. 3-74
3.3.3.35 S48 - V.42 Negotiation Control ................................................................................................ 3-74
3.3.3.36 S86 - Call Failure Reason Code .............................................................................................. 3-75
3.3.3.37 S91 - PSTN Transmit Attenuation Level .................................................................................. 3-76
3.3.3.38 S92 - Fax Transmit Attenuation Level...................................................................................... 3-76
3.3.3.39 S95 - Extended Result Codes Control .....................................................................................3-76
3.3.3.40 S210 – V.34 Symbol Rates...................................................................................................... 3-77
3.4 CELLULAR COMMANDS..................................................................................................................................... 3-78
3.4.1 Cellular Phone Drivers ............................................................................................................................. 3-78
3.4.2 Cellular Commands.................................................................................................................................. 3-78
3.4.2.1 ^C2 - Download Cellular Phone Driver.....................................................................................3-78
3.4.2.2 ^I - Identify Cellular Phone Driver............................................................................................. 3-78
3.4.2.3 ^T6 - Indicate Status of Cellular Phone.................................................................................... 3-79
3.4.3 Operation ................................................................................................................................................. 3-79
3.4.3.1 Modem Configuration............................................................................................................... 3-79
3.4.3.2 Fax Configuration..................................................................................................................... 3-80
3.4.3.3 Cellular Phone Configuration ................................................................................................... 3-80
3.5 RESULT CODES.................................................................................................................................................. 3-82
4. FAX CLASS 1 AND FAX CLASS 1.0 COMMANDS......................................................................................................... 4-1
4.1 FAX I/O PROCESSING.......................................................................................................................................... 4-1
4.1.1 DTE-to-Modem Transmit Data Stream....................................................................................................... 4-1
4.1.2 Modem-to-DTE Receive Data Stream........................................................................................................ 4-1
4.1.3 Fax Mode Selection.................................................................................................................................... 4-1
4.1.4 Fax Origination........................................................................................................................................... 4-2
4.1.5 Fax Answering............................................................................................................................................ 4-2
4.1.6 Fax Control Transmission .......................................................................................................................... 4-2
4.1.7 Fax Control Reception................................................................................................................................ 4-2
4.1.8 Fax Data Transmission .............................................................................................................................. 4-3
4.1.9 Fax Data Reception.................................................................................................................................... 4-3
4.2 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 +FAA - Auto Answer Enable ...................................................................................................... 4-4
4.2.2.2 +FAE - Auto Answer Enable ...................................................................................................... 4-4
4.2.2.3 +FTS - Transmit Silence ............................................................................................................ 4-5
4.2.2.4 +FRS - Receive Silence............................................................................................................. 4-5
4.2.2.5 +FTM - Transmit Facsimile ........................................................................................................ 4-6
4.2.2.6 +FRM - Receive Facsimile......................................................................................................... 4-7
4.2.2.7 +FTH - Transmit Data with HDLC Framing................................................................................ 4-8
4.2.2.8 +FRH - Receive Data with HDLC Framing................................................................................. 4-9
4.2.3 Service Class 1 Parameters..................................................................................................................... 4-10
4.2.3.1 +FAR - Adaptive Reception Control......................................................................................... 4-10
4.2.3.2 +FCL - Carrier Loss Timeout ................................................................................................... 4-10
4.2.3.3 +FDD - Double Escape Character Replacement ..................................................................... 4-10
4.2.3.4 +FIT - DTE Inactivity Timeout .................................................................................................. 4-12
4.2.3.5 +FPR - Fixed DTE Rate ........................................................................................................... 4-13
4.2.3.6 +FMI? - Request Manufacturer Identification........................................................................... 4-13
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4.2.3.7 +FMM? - Request Model Identification .................................................................................... 4-13
4.2.3.8 +FMR? - Request Revision Identification................................................................................. 4-14
4.2.3.9 +FLO - Flow Control................................................................................................................. 4-14
4.3 EXAMPLES .......................................................................................................................................................... 4-14
5. FAX CLASS 2 COMMANDS............................................................................................................................................. 5-1
5.1 COMMAND SYNTAX AND GUIDELINES............................................................................................................... 5-1
5.1.1 Mode Entry Commands.............................................................................................................................. 5-1
5.1.1.1 +FCLASS=2 - Select Facsimile Class 2 Mode........................................................................... 5-1
5.1.2 DTE Commands......................................................................................................................................... 5-1
5.1.2.1 DTE Command Lines................................................................................................................. 5-1
5.1.2.2 Facsimile Command Syntax ...................................................................................................... 5-1
5.1.3 Serial Port Speed and Flow Control ........................................................................................................... 5-3
5.1.3.1 Data Stream Termination........................................................................................................... 5-3
5.1.3.2 DTE to DCE Streams ................................................................................................................. 5-3
5.1.3.3 DCE to DTE Streams ................................................................................................................. 5-3
5.1.4 Auto Answer ............................................................................................................................................... 5-3
5.1.5 Identification of T.30 Options ..................................................................................................................... 5-4
5.1.6 Session Status Reporting........................................................................................................................... 5-4
5.1.7 Procedure Interrupt Negotiation ................................................................................................................. 5-4
5.2 SERVICE CLASS 2 IDENTIFICATION AND SELECTION..................................................................................... 5-4
5.2.1 +FMFR? - Request Manufacturer Identification ......................................................................................... 5-4
5.2.2 +FMDL? - Identify Product Model............................................................................................................... 5-4
5.2.3 +FREV? - Identify Product Revision........................................................................................................... 5-4
5.3 SERVICE CLASS 2 ACTION COMMANDS............................................................................................................ 5-4
5.3.1 ATD - Originate a Call ................................................................................................................................ 5-5
5.3.2 ATA - Answer a Call ................................................................................................................................... 5-5
5.3.2.1 Manual Call Answer ................................................................................................................... 5-5
5.3.2.2 Automatic Answer ...................................................................................................................... 5-5
5.3.2.3 Connection as a Data Modem.................................................................................................... 5-5
5.3.3 +FDT - Data Transmission ......................................................................................................................... 5-6
5.3.3.2 Initiate Page Transmission......................................................................................................... 5-6
5.3.3.3 Continue a Page ........................................................................................................................ 5-6
5.3.3.4 Phase C Data Framing............................................................................................................... 5-6
5.3.3.5 Phase C Data Format ................................................................................................................ 5-6
5.3.3.6 <CAN> - Escape from Transmission.......................................................................................... 5-6
5.3.4 +FET - Transmit Page Punctuation............................................................................................................ 5-8
5.3.4.1 End a Page ................................................................................................................................ 5-8
5.3.5 +FDR - Begin or Continue Phase C Receive Data..................................................................................... 5-9
5.3.5.1 Initiate Document Reception...................................................................................................... 5-9
5.3.5.2 Continue Document Reception ................................................................................................ 5-10
5.3.5.3 Phase C Data Framing............................................................................................................. 5-10
5.3.5.4 Phase C Data Format .............................................................................................................. 5-10
5.3.5.5 <CAN> - Escape from Reception............................................................................................. 5-10
5.3.6 +FK - Session Termination....................................................................................................................... 5-10
5.3.7 +FCIG - Set Polling ID.............................................................................................................................. 5-11
5.3.8 +FLPL - Indicate a Document for Polling ................................................................................................. 5-11
5.3.9 +FSPL - Enable Polling ............................................................................................................................ 5-11
5.4 SERVICE CLASS 2 DCE RESPONSES .............................................................................................................. 5-13
5.4.1 +FCON - Facsimile Connection Response .............................................................................................. 5-13
5.4.2 +FDCS: - Report Current Session Capabilities ........................................................................................ 5-13
5.4.3 +FDIS: - Report Remote Station Capabilities........................................................................................... 5-13
5.4.4 +FCFR - Indicate Confirmation to Receive .............................................................................................. 5-13
5.4.5 +FTSI: - Report the Transmit Station ID................................................................................................... 5-13
5.4.6 +FCSI: - Report the Called Station ID ...................................................................................................... 5-13
5.4.7 +FPTS: - Receive Page Transfer Status.................................................................................................. 5-14
5.4.8 +FET: - Post Page Message Response................................................................................................... 5-14
5.4.9 +FPTS: - Transmit Page Transfer Status................................................................................................. 5-14
5.4.10 +FHNG: - Call Termination with Status .................................................................................................... 5-14
5.4.11 +FCIG: - Report the Polled Station ID...................................................................................................... 5-15
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5.4.12 +FDTC: - Report the Polled Station Capabilities...................................................................................... 5-15
5.4.13 +FPOLL - Indicate Polling Request.......................................................................................................... 5-15
5.5 SERVICE CLASS 2 PARAMETERS..................................................................................................................... 5-16
5.5.1 +FDCC - DCE Capabilities Parameters ................................................................................................... 5-16
5.5.2 +FDIS - Current Sessions Capabilities Parameters ................................................................................. 5-16
5.5.3 +FDCS - Current Session Results Parameters ........................................................................................ 5-17
5.5.4 +FLID= - Local ID String .......................................................................................................................... 5-18
5.5.5 +FCR - Capability to Receive................................................................................................................... 5-18
5.5.6 +FPTS= - Page Transfer Status............................................................................................................... 5-18
5.5.7 +FCQ - Copy Quality Checking................................................................................................................ 5-18
5.5.8 +FPHCTO - DTE Phase C Response Time-out ....................................................................................... 5-18
5.5.9 +FAXERR - T.30 Session Error Report.................................................................................................... 5-19
5.5.10 +FBOR - Data Bit Order ........................................................................................................................... 5-19
5.5.11 +FAA - Answer Parameter ....................................................................................................................... 5-19
5.5.12 +FBUF? - Buffer Size ............................................................................................................................... 5-20
5.6 EXAMPLE SESSIONS ......................................................................................................................................... 5-20
6. VOICE COMMANDS......................................................................................................................................................... 6-1
6.1 Voice Commands Overview ................................................................................................................................... 6-1
6.1.1 <DLE> Shielded Event Codes Sent to the DTE ......................................................................................... 6-2
6.1.2 <DLE> Shielded Codes Sent to the Modem (DCE) ................................................................................... 6-3
6.2 Voice Commands ................................................................................................................................................... 6-4
6.2.1 Configuration Commands .......................................................................................................................... 6-4
6.2.1.1 +FCLASS=8 - Select Voice Mode.............................................................................................. 6-4
6.2.1.2 +VNH - Automatic Hang-up Control........................................................................................... 6-4
6.2.2 Voice Commands....................................................................................................................................... 6-5
6.2.2.1 +VIP - Voice Initialize All Parameters ........................................................................................ 6-5
6.2.2.2 +VRX - Start Modem Receive (Record)..................................................................................... 6-5
6.2.2.3 +VTS - Send Voice Tone(s) ....................................................................................................... 6-6
6.2.2.4 +VTX - Start Modem Transmit (Playback).................................................................................. 6-8
6.2.2.5 +VGR - Voice Gain Receive (Record Gain)............................................................................... 6-8
6.2.2.6 +VGT - Voice Gain Transmit (Playback Volume)....................................................................... 6-8
6.2.2.7 +VIT - Voice Inactivity Timer (DTE/Modem)............................................................................... 6-9
6.2.2.8 +VLS - Analog Source/Destination Selection........................................................................... 6-10
6.2.2.9 +VRA - Ringback Goes Away Timer........................................................................................ 6-13
6.2.2.10 +VRN - Ringback Never Appeared Timer................................................................................ 6-13
6.2.2.11 +VSD - Silence Detection (Quiet and Silence)......................................................................... 6-14
6.2.2.12 +VSM - Compression Method Selection .................................................................................. 6-15
6.2.2.13 +VTD - Beep Tone Duration Timer .......................................................................................... 6-16
6.2.2.14 +VDR - Distinctive Ring ........................................................................................................... 6-17
6.2.2.15 +VDT - Control Tone Cadence Reporting***............................................................................ 6-18
6.2.2.16 +VPR - Select DTE/Modem Interface Rate (Turn Off Autobaud)............................................. 6-19
6.2.3 Speakerphone Commands ...................................................................................................................... 6-20
6.2.3.1 +VSP - Speakerphone ON/OFF...............................................................................................6-20
6.2.3.2 +VDX - Speakerphone Duplex Mode....................................................................................... 6-20
6.2.3.3 +VGM - Microphone Gain ........................................................................................................ 6-21
6.2.3.4 +VGS - Speaker Gain .............................................................................................................. 6-21
7. INDEX ............................................................................................................................................................................. 7-23
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Tables
Table 3-1. Result Codes......................................................................................................................................................... 3-15
Table 3-2. +MS Command Supported Rates ......................................................................................................................... 3-37
Table 3-3. AT#UD Last Call Status Report Format ................................................................................................................ 3-57
Table 3-4. Call Setup Result Codes ....................................................................................................................................... 3-58
Table 3-5. Multimedia Modes ................................................................................................................................................. 3-58
Table 3-6. DTE-DCE modes................................................................................................................................................... 3-58
Table 3-7. V.34 INFO bit report .............................................................................................................................................. 3-58
Table 3-8. gstnModulationSchemeActive from 3.7.2/V.58 ..................................................................................................... 3-59
Table 3-9. errorControl Active from 3.5.2/V.58....................................................................................................................... 3-59
Table 3-10. compressionActive from 3.2.2/V.58..................................................................................................................... 3-59
Table 3-11. callCleared codes from 3.6.4/V.58-1994............................................................................................................. 3-60
Table 3-12. Completed Data Call, with some errors and rate retrain during the call.............................................................. 3-61
Table 3-13. S-Parameter Summary........................................................................................................................................ 3-65
Table 3-14. Remote Modem Configuration and Resulting Transmit Levels ........................................................................... 3-81
Table 3-15. Result Code Definitions....................................................................................................................................... 3-83
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................................................................................ 4-6
Table 4-3. Inactivity Timer Start and Stop Events .................................................................................................................. 4-12
Table 4-4. Fax Class 1 Calling Sequence (Transmitting a Single Page)................................................................................ 4-15
Table 4-5. Fax Class 1 Answering Sequence (Receiving a Single Page).............................................................................. 4-16
Table 5-1. Fax Class 2 Commands.......................................................................................................................................... 5-2
Table 5-2. T.30 Session Subparameter Codes ........................................................................................................................ 5-7
Table 5-3. T.30 Post Page Message Codes............................................................................................................................. 5-8
Table 5-4. T.30 Post Page Response Messages..................................................................................................................... 5-8
Table 5-5. Hang Up Status Codes.......................................................................................................................................... 5-12
Table 5-6. Send Two Pages, 1-D, No Errors.......................................................................................................................... 5-21
Table 5-7. Receive Two Pages, 1-D Data, No Errors............................................................................................................. 5-22
Table 6-1. Voice Commands.................................................................................................................................................... 6-1
Table 6-2. Supported <DLE> Shielded Codes Sent to the DTE............................................................................................... 6-2
Table 6-3. Supported <DLE> Shielded Codes Sent to the Modem (DCE)............................................................................... 6-3
Table 6-4. +VNH Command Behavior...................................................................................................................................... 6-4
Table 6-5. +VLS Command Options....................................................................................................................................... 6-11
Table 6-6. Events Detectable in the Voice Mode per V.253................................................................................................... 6-12
Figures
Figure 5-1. T.30 Session Parameter Relationships................................................................................................................ 5-16
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1. INTRODUCTION
1.1 OVERVIEW
This manual describes the host command and responses for the following Conexant modem families:
SmartSCM™ Modem Device Set
SmartACF™ Modem Device Set
SmartACFL™ Modem Device Set
The commands and responses are implemented in controller firmware for specific modem models. Additional configuration
and implementation information is available in release notes and/or readme files that accompany product firmware release.
The descriptions in this manual apply to all commands and parameters that may be supported by different modem models.
Refer to Modem Firmware Release notes for commands applicable to specific modem models.
1.1.1 Command Syntax
The fundamental DTE interface command syntax is described in Section 2.
1.1.2 Command Descriptions
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
Fax Class 2 commands Section 6
Voice/Audio commands Section 7
1.1.3 Call Progress and Blacklisting Parameters
The SmartACF and SmartACFL modem MCU firmware may be provided either in reconfigurable form or preconfigured form.
Consult the specific firmware release notes for exact configuration information.
Reconfigurable Form.
ConfigurACE II program. The call progress and blacklisting parameters described in the ConfigurACE II User's Manual can be
altered and loaded for a number of countries by this program.
Preconfigured Form.
the use of ConfigurACE II.
The modem MCU firmware can be configured for operation in specific countries by the PC-compatible
Specific MCU firmware configurations may be released that can be directly installed without requiring
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1.1.4 ConfigurACE II for Windows Utility Program
The PC-based ConfigurACE II for Windows utility program allows the OEM to customize SmartACF and SmartACFL modem
firmware to suit specific application and country requirements. ConfigurACE II for Windows allows programming of functions
such as:
Loading of multiple sets of country parameters
•
Loading of NVRAM factory profiles
•
Call progress and blacklisting parameters
•
Entry of S parameter maximum/minimum/default values
•
Limitation of transmit levels
•
Modification of factory default values
•
Customization of the ATI4 response
•
Customization of fax OEM messages
•
Enabling of Telephony Extension features
•
Direct Mode
•
This program modifies the hex object code which can be programmed directly into the system Flash ROM. Lists of the
generated parameters can be displayed or printed.
Conexant-provided country parameter files allow a complete set of country-specific call progress and blacklisting parameters
to be selected.
Refer to the ConfigurACE II for Windows software for a detailed description of capabilities and the operating procedure.
1.2 REFERENCE DOCUMENTATION
Document Title Document No.
SmartSCM Modem, V.90/K56flex/V.34/V.32bis CX88168 Single Chip Modem with CX20463
SmartDAA and Optional CX20437 Voice Codec for Embedded Applications Designer's Guide
SmartACF Modem, V.90/K56flex/V.34/V.32bis Modem Device Set with CX02200 Modem
Controller and DSP, CX20463 SmartDAA and Optional CX20437 Voice Codec Designer's Guide
SmartACFL Modem, V.90/K56flex/V.34/V.32bis Modem Device Set with L2702 Microcontroller,
P9373 Modem Data Pump, CX20463 SmartDAA, and Optional CX20437 Voice Codec for Low
Power Applications Designer's Guide
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100498
100444
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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.
The syntax and procedures described in this section are based on V.250 and V.253 with additional information included for
implemented extensions, behavioral differences beyond V.250, and legacy commands.
2.1 Alphabet
The T.50 International Alphabet 5 (IA5) is used in this document. Only the low-order seven bits of each character are
significant to the modem; any eighth or higher-order bit(s), if present, are ignored for the purpose of identifying commands
and parameters. Lower-case characters are considered identical to their upper-case equivalents when received by the
modem from the DTE. Result codes from the modem are in upper case.
2.2 DTE Commands Lines
Words enclosed in <angle brackets> are references to syntactical elements. The brackets are not used when the words
appear in a command line, the brackets are not used. Words enclosed in [square brackets] represent optional items which
may be omitted from the command line at the specified point. The square brackets are not used when the words appear in
the command line. Other characters that appear in syntax descriptions must as included as shown.
Any modem responses are mentioned in terms of their alphabetic format; the actual response 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 individual commands described in this document. Space characters (IA5 2/0) are ignored and may be
used freely for formatting purposes, unless they are embedded in numeric or string constants. The termination character may
not appear in the body. The modem can accept at least 50 characters in the body.
The termination character may be selected by a user option (parameter S3), the default being CR.
2.2.2 Command Line Editing
The character defined by parameter S5 (default, BS) is interpreted as a request from the DTE to the modem to delete the
previous character. Any control characters (IA5 0/0 through 1/15, inclusive) that remain in the command line after receipt of
the termination character are ignored by the modem.
The modem checks characters from the DTE first to see if they match the termination character (S3), then the editing
character (S5), before checking for other characters. This ensures that these characters will be properly recognized even if
they are set to values that the modem uses for other purposes. If S3 and S5 are set to the same value, a matching character
will be treated as matching S3 (S3 is checked before S5).
2.2.3 Command Line Echo
The modem may echo characters received from the DTE during command state and online command state back to the DTE,
depending on the setting of the E command. If enabled, characters received from the DTE are echoed in the same format as
received. Invalid characters in the command line or incomplete or improperly-formed command line prefixes may not be
echoed.
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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. Responses to the repeated command line are issued using format of the original command line. If "A/" is received
before any command line has been executed, the preceding command line is assumed to have been empty (that results in an
OK result code).
2.2.5 Types of DTE Commands
There are two types of commands: action commands and parameter commands. Commands of either type may be included
in command lines, in any order.
Action commands may be "executed" (to invoke a particular function of the equipment, which generally involves more than
the simple storage of a value for later use), or "tested" (to determine whether or not the equipment implements the action
command, and, if subparameters are associated with the action, the ranges of subparameter values that are supported).
Parameters may be "set" (to store a value or values for later use), "read" (to determine the current value or values stored), or
"tested" (to determine whether or not the equipment implements the parameter, and the ranges of values supported).
2.3 Basic Syntax Commands
2.3.1 Basic Syntax Command Format
The format of Basic Syntax commands, except for the D and S commands, is as follows:
<command>[<number>]
where <command> is either a single character, or the "&" character followed by a single character per V.250. In addition,
<command> can be the "%" character followed by a single character, the "*" character followed by a single character, or the
"^" character followed by 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 <number> and a number is present, an ERROR is generated. All leading "0"s in
<number> are ignored by the modem.
Additional commands may follow a command (and associated parameter, if any) on the same command line without any
character required for separation. The actions of some commands cause the remainder of the command line to be ignored
(e.g., A).
See the D command for details on the format of the information that follows it.
2.3.2 S-Parameters
Commands that begin with the letter "S" are known as "S-parameters". The number following the "S" indicates the "parameter
number" being referenced. If the number is not recognized as a valid parameter number, an ERROR result code is issued.
Immediately following this number, either a "?" or "=" character must appear. "?" is used to read the current value of the
indicated S-parameter; "=" is used to set the S-parameter to a new value.
S<parameter_number>?
S<parameter_number>=[<value>]
If the "=" is used, the new value to be stored in the S-parameter is specified in decimal following the "=". If no value is given
(i.e., the end of the command line occurs or the next command follows immediately), the S-parameter specified may be set to
0, or an ERROR result code issued and the stored value left unchanged. The ranges of acceptable values are given in the
description of each S-parameter.
If the "?" is used, the modem transmits a single line of information text to the DTE. The text portion of this information text
consists of exactly three characters, giving the value of the S-parameter in decimal, with leading zeroes included.
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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)
0 through 9 (IA5 3/0 through 3/9)
! (IA5 2/1)
% (IA5 2/5)
- (IA5 2/13)
. (IA5 2/14)
/ (IA5 2/15)
: (IA5 3/10)
_ (IA5 5/15)
The first character following the "+" is an alphabetic character in the range of "A" through "Z". This first character generally
implies the application in which a command is used (e.g., F for Fax or V for voice).
The modem considers lower-case characters to be the same as their upper-case equivalents.
2.4.2 Values
When subparameters are associated with the execution of an action, or when setting a parameter, the command may include
specification of values. This is indicated by the appearance of <value> in the descriptions below.
<value> consists of either a numeric constant or a string constant.
2.4.2.1 Numeric Constants
Numeric constants are expressed in decimal, hexadecimal, or binary.
Decimal numeric constants consist of a sequence of one or more of the characters "0" through "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" characters are ignored by the modem. No
spaces, hyphens, periods, commas, parentheses, or other generally-accepted numeric formatting characters are permitted in
numeric constants; note in particular that no "H" suffix is appended to the end of hexadecimal constants.
2.4.2.2 String Constants
String constants consist of a sequence of displayable IA5 characters, each in the range from 2/0 to 7/15, inclusive, except for
the characters ‘"’ (IA5 2/2) and "\" (IA5 5/12). String constants are bounded at the beginning and end by the double-quote
character (‘"’, IA5 2/2).
Any character value may be included in the string by representing it as a backslash ("\") character followed by two
hexadecimal digits. For example, "\0D" is a string consisting of the single character <CR> (IA5 0/13). If the "\" character itself
is to be represented in a string, it is encoded as "\5C". The double-quote character, used as the beginning and ending string
delimiter, is represented within a string constant as "\22".
A "null" string constant, or a string constant of zero length, is represented by two adjacent delimiters ("").
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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). The comma character must be included as a separator, before the second and all subsequent values in the
compound value. If a value is not specified (i.e., defaults assumed), the required comma separator must be specified;
however, trailing comma characters may be omitted if all associated values are also omitted.
2.4.3 Action Commands
2.4.3.1 Action Execution Command Syntax
There are two general types of action commands: those that have associated subparameter values that affect only that
invocation of the command, and those that have no subparameters.
If subparameters are associated with a command, the definition of the action command indicates, for each subparameter,
whether the specification of a value for that subparameter is mandatory or optional. For optional subparameters, the definition
indicates the assumed (default) value for the subparameter if no value is specified for that subparameter; the assumed value
may be either a previous value (i.e., the value of an omitted subparameter remains the same as the previous invocation of the
same command, or is determined by a separate parameter or other mechanism), or a fixed value (e.g., the value of an
omitted subparameter is assumed to be zero). Generally, the default value for numeric subparameters is 0, and the default
value for string subparameters is "" (empty string).
The following syntax is used for actions that have no subparameters:
+<name>
The following syntax is used for actions that have 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 all of the subparameter value string).
If all other relevant criteria are met (e.g., the modem is in the proper state), the command is executed with any indicated
subparameters. If <name> is not recognized, the modem issues the ERROR result code and terminates processing of the
command line. An ERROR is also generated if a subparameter is specified for an action that does not accept subparameters,
if too many subparameters are specified, if a mandatory subparameter is not specified, if a value is specified of the wrong
type, or if a value is specified that is not within the supported range.
2.4.3.2 Action Test Command Syntax
The DTE may test if an action command is implemented in the modem by using the syntax:
+<name>=?
If the modem does not recognize the indicated name, it returns an ERROR result code and terminates processing of the
command line. If the modem does recognize the action name, it returns an OK result code. If the named action accepts one
or more subparameters, the modem sends an information text response to the DTE, prior to the OK result code, specifying
the values supported by the modem for each such subparameter, and possibly additional information. The format of this
information text is defined for each action command.
2.4.4 Parameter Commands
2.4.4.1 Parameter Types
Parameters may be defined as "read-only" or "read-write". "Read-only" parameters are used to provide status or identifying
information to the DTE, but cannot be set by the DTE; attempting to set their value is an error. In some cases (specified in the
description of the individual parameter), the modem may ignore attempts to set the value of such parameters rather than
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.
Parameters may take either a single value, or multiple (compound) values. Each value may be either numeric or string; the
definition of the parameter will specify the type of value for each subparameter. Attempting to store a string value in a numeric
parameter, or a numeric value in a string parameter, is an error.
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2.4.4.2 Parameter Set Command Syntax
The definition of the parameter indicates, for each value, whether the specification of that value is mandatory or optional. For
optional values, the definition indicates the assumed (default) value if none is specified; the assumed value may be either a
previous value (i.e., the value of an omitted subparameter retains its previous value), or a fixed value (e.g., the value of an
omitted subparameter is assumed to be zero). Generally, the default value for numeric parameters is 0, and the default value
for string parameters is "" (empty string).
The following syntax is used for parameters that accept a single value:
+<name>=[<value>]
The following syntax is used for parameters that accept more than one value:
+<name>=[<compound_value>]
For each implemented parameter, if all mandatory values are specified, and all values are valid according to the definition of
the parameter, the specified values are stored. If <name> is not recognized, one or more mandatory values are omitted, or
one or more values are of the wrong type or outside the permitted range, the modem issues the ERROR 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 parameter to the DTE in an information text response. The
format of this response is described in the definition of the parameter. Generally, the values are sent in the same form in
which they would be issued by the DTE in a parameter setting command; if multiple values are supported, they will generally
be separated by commas, as in a parameter setting command.
2.4.4.4 Parameter Test Command Syntax
The DTE may test if a parameter is implemented in the modem, and determine the supported values, by using the syntax:
+<name>=?
If the modem does not recognize the indicated name, it returns an ERROR result code and terminates processing of the
command line. If the modem does recognize the parameter name, it returns an information text response to the DTE, followed
by an OK result code. The information text response indicates the values supported by the modem for each such
subparameter, and possibly additional information. The format of this information text is defined for each parameter.
2.4.5 Additional Syntax Rules
2.4.5.1 Concatenating Commands after Extended Syntax Commands
Additional commands may follow an extended-syntax command on the same command line if a semicolon (";") is inserted
after the preceding extended command as a separator. The semicolon is not necessary when the extended syntax command
is the last command on the command line.
2.4.5.2 Concatenating Commands after Basic Format Commands
Extended syntax commands may appear on the same command line after a basic syntax command without a separator, in
the same manner as concatenation of basic syntax commands.
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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. In this case the modem may or may not
generate an ERROR message. The modem will ignore any characters received from the DTE that are not part of a properlyformatted command line.
If the maximum number of characters that the modem can accept in the body is exceeded, an ERROR result code is
generated after the command line is terminated.
The DTE will not begin issuing a subsequent command line until at least one-tenth of a second has elapsed after receipt of
the entire result code issued by the modem in response to the preceding command line.
2.6 Executing Commands
Upon receipt of the termination character, the modem commences execution of the commands in the command line in the
order received from the DTE. Should execution of a command result in an error, or a character be not recognized as a valid
command, execution is terminated, the remainder of the command line is ignored, and the ERROR result code is issued.
Otherwise, if all commands execute correctly, only the result code associated with the last command is issued; result codes
for preceding commands are suppressed. If no commands appear in the command line, the OK result code is issued.
2.6.1 Aborting Commands
Some action commands that require time to execute may be aborted while in progress; these are explicitly noted in the
description of the command. Aborting of commands is accomplished by the transmission from the DTE to the modem of any
character. A single character is sufficient to abort the command in progress; however, characters transmitted during the first
125 milliseconds after 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).
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.
command in progress and returns an appropriate result code to the DTE, as specified for the particular command.
When such an aborting event is recognized by the modem, the modem terminates the
To ensure that the aborting character is
2.6.2 Handling of Invalid Numbers and S-Parameter Values
The modem reacts to undefined numbers and S-parameter values in one of three ways:
1. Issue the ERROR result code, and leave the previous value of the parameter unchanged;
2. Issue the OK result code, and leave the previous value of the parameter unchanged; or,
3. Issue the OK result code, and set the parameter value to the valid value nearest to that specified in the command line.
The description of each command specifies which of these three techniques is used to handle invalid parameter values for
that command or parameter.
2.7 Modem Responses
While in command state and online command state, the modem will issue responses using the same rate, word length, and
parity as the most recently received DTE command line. In the event that no DTE command has yet been received, rate, word
length, and parity used will depend on the capabilities of the modem.
When the modem transitions from the command state or online command state to the online data state, the result code
CONNECT
online data state to the command state or online command state, the result codes should be issued at the bit rate used during
the online data state. Thereafter, any unsolicited result codes should use the bit rate and parity of the last command line
issued by the DTE to the modem.
The characters of a response will be contiguous, with no more than 100 milliseconds of mark idle issued between characters
in addition to stop elements.
should be issued at the bit rate and parity used during the command state. When the modem transitions from the
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2.7.1 Responses
There are two types of responses that may be issued by the modem: information text and result codes.
Information Text.
1. The characters transmitted for the header are determined by the V command.
2. 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.
3. Information text usually consists of a single line; information text returned in response to some commands may contain
multiple lines, and the text may therefore include CR, LF, and other formatting characters to improve readability.
Result Code Parts.
1. The characters transmitted for the header and trailer are determined by the V command setting.
2. The result text may be transmitted as a number or as a string, also depending on a the V command setting.
Result Code Types.
Section 3.5.
1. A final result code indicates the completion of a full modem action and a ability to accept new commands from the DTE.
2. An intermediate result code is a report of the progress of an modem action. The CONNECT result code is an
intermediate result code. In the case of a dialing or answering command, the modem switches from command state to
online data state, and issues a CONNECT result code. This is an intermediate result code for the modem because it
cannot accept commands from the DTE while in online data state. When the modem switches back to the command
state it then issues a final result code (such as OK 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.
Information text responses consist of three parts: a header, information text, and a trailer:
Result codes consist of three parts: a header, the result text, and a trailer.
There are three types of result codes: final, intermediate, and unsolicited. Result codes are described in
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 general format of extended syntax result codes is the same as result codes defined in TIA-602 with regard to headers
and trailers. The characters specified in S-parameters S3 and S4 are used in headers and trailers of extended syntax result
codes as they are in basic format result codes. The setting of the V command affects the headers and trailers associated with
extended syntax result codes in the same manner as basic format result codes; however, unlike basic format result codes,
extended syntax result codes have no numeric equivalent, and are always issued in alphabetic form.
Extended syntax result codes are subject to suppression by the Q1 command, as with basic format result codes. The
issuance of extended syntax result codes are not be affected by the setting of the X command.
Extended syntax result codes may be either final, intermediate, or unsolicited; the type being indicated in the definition of the
result code.
Extended syntax result codes are prefixed by the "+" character to avoid duplication of basic format result codes specified in
TIA-602. Following the "+" character, the name of the result code appears; result code names follow the same rules as
command names.
Extended syntax result codes may include the reporting of values. The definition of the result code specifies whether or not
values are appended to the result code, and, if so, how many, their types, and their assumed default values if omitted.
Data/voice Modes.
+<name>
If a single value is to be reported, the form of the result code is:
+<name>: <value>
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.
<value> or (<value>)
When no values are to be reported, the result code appears in the simplest form:
If a single value is to be reported, the form of the result code is:
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2.7.3 +<name>: <compound_value>Information Text Formats for Test Commands
In general, the format of information text returned by extended syntax commands is described in the definition of the
command.
The modem may insert intermediate <CR> characters in very long information text responses in order to avoid overrunning
DTE receive buffers. If intermediate <CR> characters are included, the modem does not include the character sequences "0
<CR>"or "OK<CR>", so that DTE can avoid false detection of the end of these information text responses.
2.7.3.1 Range of Values
When the action accepts a single numeric subparameter, or the parameter accepts only one numeric value, the set of
supported values may be presented in the information text as an ordered list of values. The list is preceded by a left
parenthesis (() , and is followed by a right parenthesis ()). If only a single value is supported, 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 text. In all cases, the supported values are indicated in ascending order.
For example, the following are some examples of value range indications:
(0) Only the value 0 is supported.
(1,2,3) The values 1, 2, and 3 are supported.
(1-3) The values 1 through 3 are supported.
(0,4,5,6,9,11,12) The several listed values are supported.
(0,4-6,9,11-12) An alternative expression of the above list.
2.7.3.2 Compound Range of Values
When the action accepts more than one subparameter, or the parameter accepts more than one value, the set of supported
values is presented as a list of the parenthetically-enclosed value range strings described above, separated by commas. For
example, the information text in response to testing an action that accepts three subparameters, and supports various ranges
for each of them, could appear as follows:
(0),(1-3),(0,4-6,9,11-12)
This indicates that the first subparameter accepts only the value 0, the second accepts any value from 1 through 3 inclusive,
and the third subparameter accepts any of the values 0, 4, 5, 6, 9, 11, or 12.
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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. The actual default value is
dependent upon installed modem firmware and country specific parameters.
Commands are accepted by the modem once the previous command has been fully executed, which is normally indicated by
the return of an appropriate result code. Execution of commands D and A, either as a result of a direct command or a reexecute command, will be aborted if another character is entered before completion of the handshake.
3.1.1 Escape Code Sequence
When the modem has established a connection and has entered on-line data mode, it is possible 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 to the DTE is controlled by the S12 register.
3.2 DATA COMMANDS
The modem will respond to the commands detailed below. Parameters applicable to each command are listed with the
command description. The defaults shown for each configuration command are those used in the Conexant factory profile 0.
3.2.1 Generic Modem Control
3.2.1.1 Z - Soft Reset and Restore Profile
This command causes the modem to perform a soft reset and restore (recall) the configuration profile. If no <value> is
specified, zero is assumed.
Syntax
Z<value>
Defined Values
<value> Decimal number corresponding to the selected profile.
0 Soft reset and restore stored profile 0.
1 Soft reset and restore stored profile 1.
Result Codes
OK <value> = 0 or 1.
ERROR Otherwise.
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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.
0 Select Data Mode (see Section 1). (Default.)
1 Select Facsimile Class 1 Mode. (See Section 3.)
1.0 Select Facsimile Class 1.0 Mode. (See Section 3.)
2 Select Facsimile Class 2 Mode. (See Section 1.)
8 Select Voice Mode. (See Section 5.)
10 Select DataDome. (Fax for Japan.)
Result Codes
OK For <mode> = 0, 1, 1.0, 2, 8, and 10.
ERROR Otherwise.
Reporting Current or Selected Values
Command: +FCLASS?
Response: +FCLASS: <mode>
Example: +FCLASS: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +FCLASS=?
Response: +FCLASS: (<mode> range)
Example: +FCLASS: (0,1,1.0,2,8,10)
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 Incoming Call Line
ID (ICLID) data format for the next call.
Syntax
+VCID=<pmode>
Defined Values
<pmode> Decimal number corresponding to the selected option.
0 Disable Caller ID reporting. (Default.)
1 Enables Caller ID with formatted presentation to the DTE. The modem presents
the data items in a <Tag><Value> pair format. The expected pairs are date, time,
name, and caller code (telephone number),
2 Enables Caller ID with unformatted presentation to the DTE.
Reporting Current or Selected Values
Command: +VCID?
Response: +VCID: <pmode>
Example: +VCID: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VCID=?
Response: +VCID: (<pmode> range)
Example: +VCID: (0-2)
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3.2.1.4 +VRID - Report Retrieved Caller ID (CID)
This command reports the data associated with the Caller ID services in the Incoming Call Line ID (ICLID) data format for the
last received call.
Syntax
+VRID=<pmode>
Defined Values
<pmode> Decimal number corresponding to the selected option.
0 Reports Caller ID with formatted presentation to the DTE. The modem presents the
data items in a <Tag><Value> pair format. The expected pairs are date, time,
name, and caller code (telephone number),
1 Reports Caller ID with unformatted presentation to the DTE.
Reporting Supported Range of Parameter Values
Command: +VRID=?
Response: +VRID: (<pmode> range)
Example: +VRID: (0,1)
3.2.1.5 \N - Operating Mode
This command controls the preferred error correcting mode to be negotiated in a subsequent data connection. This command
is affected by the OEM firmware configuration.
Syntax
\N<mode>
Defined Values
<mode> Decimal number which corresponds to the selected mode.
0 Selects normal speed buffered mode (disables error-correction mode). (Forces
&Q6.)
1 Serial interface selected - Selects direct mode and is equivalent to &M0, &Q0
mode of operation. (Forces &Q0.)
Parallel interface selected - Same as \N0.
2 Selects reliable (error-correction) mode. The modem will first attempt a LAPM
connection and then an MNP connection. Failure to make a reliable connection
results in the modem hanging up. (Forces &Q5, S36=4, and S48=7.)
3 Selects auto reliable mode. This operates the same as \N2 except failure to make
a reliable connection results in the modem falling back to the speed buffered
normal mode. (Forces &Q5, S36=7, and S48=7.)
4 Selects LAPM error-correction mode. Failure to make an LAPM error-correction
connection results in the modem hanging up. (Forces &Q5 and S48=0.) Note: The
-K1 command can override the \N4 command.
5 Selects MNP error-correction mode. Failure to make an MNP error-correction
connection results in the modem hanging up. (Forces &Q5, S36=4, and S48=128.)
Result Codes
OK <mode> = 0 to 5.
ERROR Otherwise.
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3.2.1.6 -SMS= - Select Mode
Selects Data mode, DSVD (digital simultaneous voice and data) mode, or enables automatic mode selection.
Syntax
-SMS<mode>
Defined Values
<mode> Decimal number corresponding to the selected mode or automatic mode select enable.
0 Data mode. (Default.)
1 DSVD mode (a modem not supporting DSVD will respond with ERROR).
2 Reserved (will respond with ERROR).
3 Automatic modem select (DSVD mode/Data mode).
Notes
DSVD is a technology that allows simultaneous voice and data operation using a Conexant modem connected to a telephone
line. Voice and data channels are combined in the digital domain for DSVD.
Establishing a DSVD connection is analogous to establishing a regular data modem connection. Initiate the call using normal
dialing (ATD) and answering (ATA) procedures. The modem can switch from a regular phone conversation into DSVD mode
and back to phone conversation. A handset, headset, or microphone/speaker can be used for voice communication during
DSVD mode.
DSVD requires a V.34 mode or faster connection.
Reporting Selected Options
The modem reports the selected options in response to the following command:
-SMS?
The response is:
<mode>
Example:
-SMS?
0
Reporting Supported Options
The modem reports the supported options in response to the following command:
-SMS=?
The response is:
(list of<mode> values)
Example:
-SMS=?
(0 or 1)
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3.2.1.7 I - Identification
This command causes the modem to reports the requested result according to the command parameter.
Syntax
I<value>
Defined Values
<value> Decimal number corresponding to the selected information.
0 Reports product code, e.g., “56000”.
1 Reports the least significant byte of the stored checksum in decimal (see firmware
release notes). Reports 255 if the prestored checksum value is FFh.
2 Reports "OK".
3 Reports identification codes in the form RevisionName-Modulation_Model, where:
RevisionName = Product family name_firmware version. The product family
name is ACF3 for SmartSCM, SmartACFL, and SmartSCM.
The firmware version is in the form VX.XXX. For example:
ACF3_V1.200
Modulation = V90, V34, or V32 for V.90, V.34, or V.32bis, respectively
Model = Typical models are:
2M_SCF Serial and parallel interface in ROM
2M_RAM_SCF Serial and parallel interface in RAM.
1M_RAM_SCF Serial and parallel interface in 1M RAM
Examples: ACF3_V1.200-V90_2M_SCF
ACF3_V1.200-V34_1M_RAM_SCF
NOTE:
4 Reports OEM defined identifier string in either Hayes-compatible binary format
(default) or ASCII format (selectable by ConfigurACE), e.g.:
5 Reports Country Code parameter (see +GCI command), e.g., B5.
6 Reports modem data pump model and internal code revision, e.g.,
“RCV56DPF-PLL L8773A Rev 14.00/34.00”.
7 Reports “OK”.
If RPI+ is enabled (see +Hn command),
“ROCKWELL RPI (TM)+01” is appended.
a007040284C6002F
bC60000000
r1005111151012000
r3000111170000000
Result Codes
OK <value> = 0 - 7.
ERROR Otherwise.
3.2.1.8 +GMI - Request Manufacturer Identification
This command causes the modem to report the modem product manufacturer.
Syntax
+GMI
Typical Response
+GMI: CONEXANT
OK
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3.2.1.9 +GMI9 - Request Conexant Identification
This command causes the modem to report CONEXANT ACF identification. The response cannot be modified using
ConfigurACE.
Syntax
+GMI9
Response
+GMI9: CONEXANT ACF
OK
3.2.1.10 +GMM - Request Model Identification
This command causes the modem to report the modem product.
Syntax
+GMM
Typical Response
+GMM: V90
3.2.1.11 +GMR - Request Revision Identification
This command causes the modem to report the modem version, revision level or date. This is the same as the I3 command.
Syntax
+GMR
Typical Response
+GMR: P2109-V90
OK
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3.2.1.12 +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 control standard that uses Extended Syntax Commands, and if that
modem control standard includes command(s) that indicate general capabilities, the +<names>(s) of those commands will be
reported to the modem in response to a +GCAP command.
Syntax
+GCAP
Example Responses
+GCAP: +FCLASS, +MS, +ES, +DS, for a data modem that supports all capabilities listed
Where:
+FCLASS T.class1, +F (Class 1 Facsimile modem Control)
+MS +M commands (Modulation Control: +MS and +MR commands)
+ES +E commands (Error Control: +ES, +EB, +ER, +EFCS, +ETBM)
+DS +D commands (Data Compression: +DS and +DR)
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3.2.1.13 +GCI - Country of Installation
This extended syntax command selects and indicates 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>
Defined Values
<country_code> 8-bit country code from Annex A of T.35. The value is the hexadecimal equivalent of the T.35
code, with bit 8 treated as the most significant bit and bit 1 treated as the least significant bit.
The supported countries are:
Country Code Country Code Country Code
Australia 09 Hong Kong 50 Norway 82
Austria 0A Hungary 51 Philippines 89
Belgium 0F India 53 Poland 8A
Brazil 16 Ireland 57 Portugal 8B
Bulgaria 1B Israel 58 Russia B8
Canada 20 Italy 59 Singapore 9C
China 26 Japan 00 South Africa 9F
Czech and Slovak
Federal Republic
Denmark 31 Luxembourg 69 Sweden A5
Finland 3C Malaysia 6C Switzerland A6
France 3D Mexico 73 Taiwan FE
Germany 42 Netherlands 7B United Kingdom B4
Greece 46 New Zealand 7E United States B5
2E Korea 61 Spain A0
Default
If the modem is specified for use in only one country, that country code is the default. Otherwise, the default is defined by the
OEM. Factory default is B5 (United States).
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: +GCI: (20,73,B5) The modem can be set for Canada, Mexico or the United States.
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3.2.1.14 &F - Restore Factory Configuration (Profile)
The modem loads the factory default configuration (profile). The factory defaults are identified for each command and in the
S-Parameter descriptions. A configuration (profile) consists of a subset of S-Parameters.
Syntax
&F[<value>]
Defined Values
<value> Decimal number corresponding to the selected configuration.
0 Restore factory configuration 0.
1 Restore factory configuration 1.
Result Codes
OK
ERROR If the modem is connected.
3.2.1.15 &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), e.g., AT&Q6. To terminate the test in progress, the escape sequence must
be entered first (see Section 3.1.1).
Syntax
&T[<value>]
Defined Values
<value> Decimal number corresponding to the selected option.
0 Terminates test in progress. Clears S16.
1 Initiates local analog loopback, V.54 Loop 3. Sets S16 bit 0. If a connection exists
when this command is issued, the modem hangs up. The CONNECT XXXX
message is displayed upon the start of the test.
3.2.1.16 &Y - Designate a Default Reset Profile
This command selects which user profile will be used after a hard reset.
Syntax
&Y<value>
Defined Values
<value> Decimal number corresponding to the selected profile.
0 The modem will use profile 0.
1 The modem will use profile 1.
Result Codes
OK <value> = 0 to 1.
ERROR If <value> > 1, or if NVRAM is not installed or is not operational.
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3.2.1.17 &W - Store Current Configuration
Saves the current (active) configuration (profile), including S-Parameters, in one of the two user profiles in NVRAM as
denoted by the parameter value. This command will yield an ERROR message if the NVRAM is not installed or is not
operational as detected by the NVRAM test.
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 a Zn command or at power up (see &Yn command).
Syntax
&W<value>
Defined Values
<value> Decimal number corresponding to the selected profile.
0 Store the current configuration as profile 0.
1 Store the current configuration as profile 1.
Result Codes
OK <value> = 0 or 1.
ERROR Otherwise.
3.2.1.18 &Zn=x - Store Telephone Number
The modem can store up to four telephone numbers and each telephone number dial string can contain up to 31 digits.
(Requires 256-byte NVRAM installed.)
Syntax
&Z<value>
Defined Values
<value> Decimal number from 0 to 3 corresponding to the selected telephone number.
<string> Dial string from 0 to 31 characters.
Result Codes
OK For <value> ≤ 3, and <string> ≤ 31 digits.
ERROR If <value> > 3, <string> > 31 digits, or if NVRAM is not installed or is not operational.
3.2.1.19 %7 - Plug and Play Serial Number
Sets and stores eight serial numbers in hex format used for serial Plug and Play and for ISA Plug and Play which use the
Conexant 11596 Plug and Play device. Applicable to Desktop configuration only.
Syntax
%7<8 hex numbers><same 8 hex numbers>
Example
%7<8 hex numbers><same 8 hex numbers>
Result Codes
OK <8 hex numbers><same 8 hex numbers>
ERROR Otherwise
To display the stored serial number, issue AT"?<cr>.
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