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Itron 921 User Manual

AT Commands for RCV56ACx, RCV336ACx, RCV288ACx, and RCV144ACx Modems
Reference Manual (Preliminary)
Order No. 1048
Rev. 4, February 20, 1997
AT Command Reference Manual
NOTICE
Information furnished by Roc kwell International Corporation is believed to be accurate and reliable. How ever, no responsibility is assumed by Roc kwell International for its us e, nor any infringement of patents or other rights of third parties which may result from its use. N o license is granted by implic ation or otherwise under any patent rights of Rock well International other than for circuitr y embodied in Rockwell produc ts. Rockw ell International reserves the r ight to change circuitry at any time without notice. This document is subject to change without notice.
K56flex is a trademark of Lucent Technologies and Rockwell International. ConfigurACE is a trademark of Rockwell International. MNP is a registered trademark of Microcom, Inc. Hayes is a registered trademark of Hayes Microcomputer Products, Inc.
AT Command Reference Manual
PREFACE
This manual supersedes the following manuals:
1. AT Command Reference Manual for the RC288ACi and RC288ACL Modem Families (Order No. 1048, Rev.3, January 9, 1996).
2. Addendum 1 to AT Commands for RC288ACx and RC144ACx Modem Families (Order No. 1048R3A1, Rev.1, August 2, 1996).
This revision incorporates Addendum 1 to AT Commands for RC288ACx and RC144ACx Modem Families (Order No. 1048R3A1, Rev.1, August 2, 1996); adds K56flex command (+MS), connect and carrier messages; and adds V.80 commands.
AT Command Reference Manual
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AT Command Reference Manual
Table of 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...............................................................................................1-2
1.1.4 ConfigurACE II for Windows Utility Program.............................................................................................1-2
1.2 REFERENCE DOCUMENTATION ........................................................................................................................1-2
2.1 DTE/DCE INTERCHANGE CIRCUITS...................................................................................................................2-1
2.2 COMMAND SYNTAX AND GUIDELINES..............................................................................................................2-1
2.2.1 DTE Commands......................................................................................................................................2-1
2.2.2 DTE Command Lines...............................................................................................................................2-1
2.3 AT COMMAND GUIDELINES ...............................................................................................................................2-1
2.3.1 Basic Command Syntax...........................................................................................................................2-1
2.3.2 Extended Command Syntax ....................................................................................................................2-1
3. AT COMMAND SET......................................................................................................................................................3-1
3.1 AT COMMAND GUIDELINES ...............................................................................................................................3-1
3.1.1 AT Commands, DTE Adaption................................................................................................................. 3-1
3.1.2 AT Command Format..............................................................................................................................3-1
3.1.3 Escape Code Sequence .......................................................................................................................... 3-1
3.2 AT COMMAND SET .............................................................................................................................................3-2
3.2.1 AT Commands ........................................................................................................................................3-2
A/ - Re-execute Command ...................................................................................................................3-2
AT= x - Write to Selected S-Register ....................................................................................................3-2
AT? - Read Selected S-Register...........................................................................................................3-2
A - Answer ...........................................................................................................................................3-2
Bn - CCITT or Bell................................................................................................................................3-2
Cn - Carrier Control..............................................................................................................................3-3
Dn - Dial...............................................................................................................................................3-3
En - Command Echo............................................................................................................................3-4
Fn - Select Line Modulation (RC144 Models Only)................................................................................3-5
Hn - Disconnect (Hang-Up)...................................................................................................................3-6
In - Identification...................................................................................................................................3-6
Ln - Speaker Volume............................................................................................................................3-6
Mn - Speaker Control ...........................................................................................................................3-7
Nn - Automode Enable .........................................................................................................................3-7
On - Return to On-Line Data Mode.......................................................................................................3-7
P - Set Pulse Dial Default .....................................................................................................................3-8
Qn - Quiet Results Codes Control............................................................................................... ..........3-8
Sn - Read/Write S-Register ..................................................................................................................3-8
T - Set Tone Dial Default ......................................................................................................................3-9
Vn - Result Code Form.........................................................................................................................3-9
Wn - Connect Message Control............................................................................................................3-9
Xn - Extended Result Codes...............................................................................................................3-10
Yn - Long Space Disconnect...............................................................................................................3-13
Zn - Soft Reset and Restore Profile ....................................................................................................3-13
3.2.2 AT& Commands....................................................................................................................................3-14
&Cn - RLSD (DCD) Option..................................................................................................................3-14
&Dn - DTR Option ..............................................................................................................................3-14
&Fn - Restore Factory Configuration (Profile)......................................................................................3-14
&Gn - Select Guard Tone...................................................................................................................3-15
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&Jn - Telephone Jack Control.............................................................................................................3-15
&Kn - Flow Control .............................................................................................................................3-15
&Ln - Leased Line Operation..............................................................................................................3-15
&Mn - Asynchronous/Synchronous Mode Selection ............................................................................3-16
&Pn - Select Pulse Dial Make/Break Ratio ..........................................................................................3-16
&Qn - Sync/Async Mode.....................................................................................................................3-17
&Rn - RTS/CTS Option.......................................................................................................................3-18
&Sn - DSR Override...........................................................................................................................3-18
&Tn - Test and Diagnostics.................................................................................................................3-18
&V - Display Current Configuration and Stored Profiles.......................................................................3-19
3.2.3 &V1 - Display Last Connection Statistics................................................................................................3-19
&Wn - Store Current Configuration .....................................................................................................3-20
&Xn - Select Synchronous Clock Source.............................................................................................3-20
&Yn - Designate a Default Reset Profile..............................................................................................3-20
&Zn=x - Store Telephone Number ......................................................................................................3-20
3.2.4 AT% Commands ...................................................................................................................................3-21
%En - Enable/Disable Line Quality Monitor and Auto-Retrain or Fallback/Fall Forward ........................3-21
%L - Line Signal Level........................................................................................................................3-21
%Q - Line Signal Quality.....................................................................................................................3-21
%7 - Plug and Play Serial Number......................................................................................................3-22
%8 - Plug and Play Vendor ID and Product Number............................................................................3-22
3.2.5 AT\ Commands .....................................................................................................................................3-23
\Kn - Break Control.............................................................................................................................3-23
\Nn - Operating Mode.........................................................................................................................3-24
\Vn - Single Line Connect Message Enable.........................................................................................3-24
3.2.6 AT+ Commands ....................................................................................................................................3-25
+MS - Select Modulation.....................................................................................................................3-25
+Hn - Enable/Disable RPI and DTE Speed..........................................................................................3-28
3.2.7 AT** Command .....................................................................................................................................3-29
** - Download to Flash Memory ..........................................................................................................3-29
3.2.8 AT- Commands.....................................................................................................................................3-30
-SDR=n - Enable/Disable Distinctive Ring ...........................................................................................3-30
3.3 ERROR DETECTION AND DATA COMPRESSION COMMANDS.......................................................................3-31
3.3.1 AT% Commands ...................................................................................................................................3-31
%C - Enable/Disable Data Compression.............................................................................................3-31
3.3.2 AT\ Commands .....................................................................................................................................3-31
\An - Select Maximum MNP Block Size............................................................................................... 3-31
\Bn - Transmit Break to Remote..........................................................................................................3-31
3.4 MNP 10 COMMANDS.........................................................................................................................................3-32
3.4.1 AT) Commands.....................................................................................................................................3-32
)Mn - Enable Cellular Power Level Adjustment.................................................................................... 3-32
*Hn - Link Negotiation Speed..............................................................................................................3-32
-Kn - MNP Extended Services ............................................................................................................3-32
-Qn - Enable Fallback to V.22 bis/V.22................................................................................................3-32
-SEC=n - Enable/Disable MNP10-EC..................................................................................................3-33
@Mn - Initial Cellular Power Level Setting...........................................................................................3-33
:E - Compromise Equalizer Enable Command.....................................................................................3-33
3.5 W-CLASS COMMANDS......................................................................................................................................3-34
3.5.1 AT* Commands.....................................................................................................................................3-34
*B - Display Blacklisted Numbers........................................................................................................3-34
*D - Display Delayed Numbers............................................................................................................3-34
*NCn - Country Select ........................................................................................................................3-35
3.6 CALLER ID COMMANDS ...................................................................................................................................3-36
3.6.1 AT#CID Command ............................................................................................................................... .3-36
#CIDn - Caller ID............................................................................................................................... .3-36
Inquiries .............................................................................................................................................3-36
Formatted Form Reporting..................................................................................................................3-36
AT Command Reference Manual
Example of Formatted Form Reporting...............................................................................................3-37
Unformatted Form Reporting..............................................................................................................3-37
Example of Unformatted Form Reporting............................................................................................3-37
3.7 CELLULAR COMMANDS....................................................................................................................................3-38
3.7.1 Cellular Phone Drivers...........................................................................................................................3-38
3.7.2 Cellular Commands ...............................................................................................................................3-38
^C2 - Download Cellular Phone Driver ................................................................................................3-38
^I - Identify Cellular Phone Driver........................................................................................................3-38
^T6 - Indicate Status of Cellular Phone ...............................................................................................3-39
3.7.3 Operation..............................................................................................................................................3-39
Modem Configuration .........................................................................................................................3-39
Fax Configuration...............................................................................................................................3-40
Cellular Phone Configuration ..............................................................................................................3-40
3.8 AT COMMAND RESULT CODES .......................................................................................................................3-42
OK (0) 3-42
CONNECT (1)....................................................................................................................................3-42
RING (2) ............................................................................................................................................3-42
NO CARRIER (3)................................................................................................................................3-42
ERROR (4).........................................................................................................................................3-42
CONNECT 1200 (5)............................................................................................................................3-42
NO DIALTONE (6)..............................................................................................................................3-42
BUSY (7)............................................................................................................................................3-43
NO ANSWER (8)................................................................................................................................3-43
CONNECT 0600 (9)............................................................................................................................3-43
CONNECT 2400 (10)..........................................................................................................................3-43
CONNECT 4800 (11)..........................................................................................................................3-43
CONNECT 9600 (12)..........................................................................................................................3-43
CONNECT 7200 (13)..........................................................................................................................3-43
CONNECT 12000 (14)........................................................................................................................3-43
CONNECT 14400 (15)........................................................................................................................3-43
CONNECT 19200 (16)........................................................................................................................3-43
CONNECT 38400 (17)........................................................................................................................3-44
CONNECT 57600 (18)........................................................................................................................3-44
CONNECT 115200 (19)......................................................................................................................3-44
CONNECT 75TX/1200RX (22)............................................................................................................3-44
CONNECT 1200TX/75RX (23)............................................................................................................3-44
DELAYED (24)...................................................................................................................................3-44
BLACKLISTED (32)............................................................................................................................ 3-44
FAX (33).............................................................................................................................................3-44
DATA (35)............................................................................................................................... ...........3-44
CARRIER 300 (40).............................................................................................................................3-44
CARRIER 1200/75 (44) ......................................................................................................................3-44
CARRIER 75/1200 (45) ......................................................................................................................3-44
CARRIER 1200 (46)...........................................................................................................................3-44
CARRIER 2400 (47)...........................................................................................................................3-44
CARRIER 4800 (48)...........................................................................................................................3-44
CARRIER 7200 (49)...........................................................................................................................3-45
CARRIER 9600 (50)...........................................................................................................................3-45
CARRIER 12000 (51).........................................................................................................................3-45
CARRIER 14400 (52).........................................................................................................................3-45
CARRIER 16800 (53).........................................................................................................................3-45
CARRIER 19200 (54).........................................................................................................................3-45
CARRIER 21600 (55).........................................................................................................................3-45
CARRIER 24000 (56).........................................................................................................................3-45
CARRIER 26400 (57).........................................................................................................................3-45
CARRIER 28800 (58).........................................................................................................................3-45
CONNECT 16800 (59)........................................................................................................................3-45
CONNECT 21600 (61)........................................................................................................................3-45
CONNECT 24000 (62)........................................................................................................................3-45
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CONNECT 26400 (63)........................................................................................................................ 3-45
CONNECT 28800 (64)........................................................................................................................3-46
COMPRESSION: CLASS 5 (66) .........................................................................................................3-46
COMPRESSION: V.42 bis (67)...........................................................................................................3-46
COMPRESSION: NONE (69) .............................................................................................................3-46
PROTOCOL: NONE (70)....................................................................................................................3-46
PROTOCOL: LAPM (77) ....................................................................................................................3-46
CARRIER 31200 (78).........................................................................................................................3-46
CARRIER 33600 (79).........................................................................................................................3-46
PROTOCOL: ALT (80)........................................................................................................................3-46
PROTOCOL: ALT-CELLULAR (81).....................................................................................................3-46
CONNECT 33600 (84)........................................................................................................................3-46
CONNECT 31200 (91)........................................................................................................................3-46
CARRIER 32000 (150) .......................................................................................................................3-46
CARRIER 34000 (151) .......................................................................................................................3-46
CARRIER 36000 (152) .......................................................................................................................3-47
CARRIER 38000 (153) .......................................................................................................................3-47
CARRIER 40000 (154) .......................................................................................................................3-47
CARRIER 42000 (155) .......................................................................................................................3-47
CARRIER 44000 (156) .......................................................................................................................3-47
CARRIER 46000 (157) .......................................................................................................................3-47
CARRIER 48000 (158) .......................................................................................................................3-47
CARRIER 50000 (159) .......................................................................................................................3-47
CARRIER 52000 (160) .......................................................................................................................3-47
CARRIER 54000 (161) .......................................................................................................................3-47
CARRIER 56000 (162) .......................................................................................................................3-47
CONNECT 32000 (165)......................................................................................................................3-47
CONNECT 34000 (166)......................................................................................................................3-47
CONNECT 36000 (167)......................................................................................................................3-47
CONNECT 38000 (168)......................................................................................................................3-48
CONNECT 40000 (169)......................................................................................................................3-48
CONNECT 42000 (170)......................................................................................................................3-48
CONNECT 44000 (171)......................................................................................................................3-48
CONNECT 46000 (172)......................................................................................................................3-48
CONNECT 48000 (173)......................................................................................................................3-48
CONNECT 50000 (174)......................................................................................................................3-48
CONNECT 52000 (175)......................................................................................................................3-48
CONNECT 54000 (176)......................................................................................................................3-48
CONNECT 56000 (177)......................................................................................................................3-48
CONNECT 230400 (20)......................................................................................................................3-48
+FCERROR (+F4)..............................................................................................................................3-48
3.9 AUDIOSPAN AND DSVD COMMANDS ..............................................................................................................3-49
3.9.1 Commands Supported by Both AudioSpan and DSVD ...........................................................................3-49
-SMS= x, y, z, t - Select AudioSpan/DSVD Mode................................................................................3-49
#VLS = x - Voice Line Select...............................................................................................................3-50
3.9.2 Commands Supported Only by DSVD....................................................................................................3-50
-SSE= x - Enable/Disable DSVD.........................................................................................................3-50
3.9.3 Commands Supported Only by AudioSpan ............................................................................................3-51
-SQS= x, y - Select AudioSpan Modulation.........................................................................................3-51
3.9.4 Examples ..............................................................................................................................................3-53
3.10 SYNCHRONOUS ACCESS MODE ...................................................................................................................3-58
3.10.1 Synchronous Access Mode Commands...............................................................................................3-58
+ES - Enable Synchronous Access Mode...........................................................................................3-58
+ESA - Configure Synchronous Access Submode...............................................................................3-59
+ ITF - Transmit Flow Control Thresholds ...........................................................................................3-61
4. S-REGISTERS..............................................................................................................................................................4-1
4.1 FACTORY DEFAULTS .........................................................................................................................................4-1
4.2 S-REGISTER DEFINITIONS.................................................................................................................................4-4
AT Command Reference Manual
S0 - Number of Rings to Auto-Answer ..................................................................................................4-4
S1 - Ring Counter.................................................................................................................................4-4
S2 - Escape Character .........................................................................................................................4-4
S3 - Carriage Return Character............................................................................................................4-4
S4 - Line Feed Character......................................................................................................................4-4
S5 - Backspace Character....................................................................................................................4-4
S6 - Wait Time for Dial Tone Before Blind Dialing, or After “W” Dial Modifier (W-Class Models).............4-5
S7 - Wait Time For Carrier After Dial, For Silence, or For Dial Tone After “W” Dial Modifier (US Models)4-5
S8 - Pause Time For Dial Delay............................................................................................................4-5
S9 - Carrier Detect Response Time ......................................................................................................4-5
S10 - Lost Carrier To Hang Up Delay....................................................................................................4-5
S11 - DTMF Tone Duration...................................................................................................................4-5
S12 - Escape Prompt Delay (EPD) ....................................................................................................... 4-6
S13 - Reserved ............................................................................................................................... .....4-6
S14 - General Bit Mapped Options Status.............................................................................................4-6
S15 - Reserved ............................................................................................................................... .....4-6
S16 - General Bit Mapped Test Options Status.....................................................................................4-7
S17 - Reserved ............................................................................................................................... .....4-7
S18 - Test Timer...................................................................................................................................4-7
S19 - AutoSync Bit Mapped Options.....................................................................................................4-8
S20 - AutoSync HDLC Address or BSC Sync Character........................................................................4-8
S21 - V.24/General Bit Mapped Options Status.....................................................................................4-9
S22 - Speaker/Results Bit Mapped Options Status..............................................................................4-10
S23 - General Bit Mapped Options Status...........................................................................................4-11
S24 - Sleep Inactivity Timer................................................................................................................4-11
S25 - Delay To DTR ...........................................................................................................................4-11
S26 - RTS to CTS Delay..................................................................................................................... 4-11
S27 - Bit Mapped Options Status........................................................................................................4-12
S28 - Bit Mapped Options Status........................................................................................................4-13
S29 - Flash Dial Modifier Time............................................................................................................4-13
S30 - Disconnect Inactivity Timer........................................................................................................4-13
S31 - Bit Mapped Options Status........................................................................................................4-14
S32 - XON Character .........................................................................................................................4-14
S33 - XOFF Character........................................................................................................................4-14
S34-S35 - Reserved...........................................................................................................................4-14
S36 - LAPM Failure Control................................................................................................................4-15
S37 - Desired Line Connection Speed.................................................................................................4-16
S38 - Delay Before Forced Hang Up...................................................................................................4-17
S39 - Flow Control Bit Mapped Options Status....................................................................................4-17
S40 - General Bit Mapped Options Status...........................................................................................4-18
S41 - General Bit Mapped Options Status...........................................................................................4-19
S46 - Data Compression Control ........................................................................................................4-19
S48 - V.42 Negotiation Action.............................................................................................................4-19
S82 - Break Handling Options.............................................................................................................4-20
S86 - Call Failure Reason Code..........................................................................................................4-20
S91 - PSTN Transmit Attenuation Level..............................................................................................4-20
S92 - Fax Transmit Attenuation Level.................................................................................................4-20
S95 - Extended Result Codes.............................................................................................................4-21
5. FAX CLASS 1 COMMANDS .........................................................................................................................................5-1
5.1 FAX I/O PROCESSING ........................................................................................................................................5-1
5.1.1 DTE-to-Modem Transmit Data Stream.....................................................................................................5-1
5.1.2 Modem-to-DTE Receive Data Stream......................................................................................... .............5-1
5.1.3 Fax Mode Selection................................................................................................................................ .5-1
5.1.4 Fax Origination........................................................................................................................................5-1
5.1.5 Fax Answering.........................................................................................................................................5-2
5.1.6 Fax Control Transmission........................................................................................................................5-2
5.1.7 Fax Control Reception.............................................................................................................................5-2
5.1.8 Fax Data Transmission............................................................................................................................5-3
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5.1.9 Fax Data Reception................................................................................................................................ .5-3
5.2 COMMANDS........................................................................................................................................................5-4
+FCLASS=n - Select Service Class ......................................................................................................5-4
+F<command>? - Report Active Configuration......................................................................................5-4
+F<command>=? - Report Operating Capabilities.................................................................................5-4
+FAE=n - Data/Fax Auto Answer..........................................................................................................5-4
+FTS=n - Stop Transmission and Wait..................................................................................................5-4
+FRS=n - Receive Silence....................................................................................................................5-4
+FTM=n - Transmit Data ......................................................................................................................5-5
+FRM=n - Receive Data.......................................................................................................................5-5
+FTH=n - Transmit Data with HDLC Framing........................................................................................5-6
+FRH=n - Receive Data with HDLC Framing.........................................................................................5-6
5.3 EXAMPLES..........................................................................................................................................................5-6
6. FAX CLASS 2 COMMANDS .........................................................................................................................................6-1
6.1 COMMAND SYNTAX AND GUIDELINES..............................................................................................................6-1
6.1.1 DTE Commands......................................................................................................................................6-1
DTE Command Lines ...........................................................................................................................6-1
Facsimile Command Syntax .................................................................................................................6-1
6.1.2 Serial Port Speed and Flow Control ......................................................................................................... 6-3
Data Stream Termination......................................................................................................................6-3
DTE to DCE Streams............................................................................................................................6-3
DCE to DTE Streams............................................................................................................................6-3
6.1.3 Auto Answer............................................................................................................................................6-3
6.1.4 Identification of T.30 Options ...................................................................................................................6-3
6.1.5 Session Status Reporting.........................................................................................................................6-4
6.1.6 Procedure Interrupt Negotiation...............................................................................................................6-4
6.2 SERVICE CLASS 2 IDENTIFICATION AND SELECTION......................................................................................6-4
6.2.1 +FMFR?, Request Manufacturer Identification .........................................................................................6-4
6.2.2 +FMDL?, Identify Product Model..............................................................................................................6-4
6.2.3 +FREV?, Identify Product Revision..........................................................................................................6-4
6.3 SERVICE CLASS 2 ACTION COMMANDS........................................................................................................... 6-4
6.3.1 ATD, Originate a Call...............................................................................................................................6-5
6.3.2 ATA, Answer a Call..................................................................................................................................6-5
Manual Call Answer..............................................................................................................................6-5
Automatic Answer.................................................................................................................................6-5
Connection as a Data Modem...............................................................................................................6-5
6.3.3 +FDT, Data Transmission........................................................................................................................ 6-6
Initiate Page Transmission....................................................................................................................6-6
Continue a Page...................................................................................................................................6-6
Phase C Data Framing .........................................................................................................................6-6
Phase C Data Format...........................................................................................................................6-6
<CAN>, Escape from Transmission......................................................................................................6-6
6.3.4 +FET, Transmit Page Punctuation ...........................................................................................................6-8
End a Page ..........................................................................................................................................6-8
6.3.5 +FDR, Begin or Continue Phase C Receive Data.....................................................................................6-9
Initiate Document Reception.................................................................................................................6-9
Continue Document Reception ...........................................................................................................6-10
Phase C Data Framing .......................................................................................................................6-10
Phase C Data Format.........................................................................................................................6-10
<CAN>, Escape from Reception .........................................................................................................6-10
6.3.6 +FK, Session Termination......................................................................................................................6-10
6.3.7 +FCIG, Set Polling ID ............................................................................................................................6-11
6.3.8 +FLPL, Indicate a Document for Polling .................................................................................................6-11
6.3.9 +FSPL, Enable Polling...........................................................................................................................6-11
6.4 SERVICE CLASS 2 DCE RESPONSES..............................................................................................................6-13
AT Command Reference Manual
6.4.1 +FCON, Facsimile Connection Response ..............................................................................................6-13
6.4.2 +FDCS:, Report Current Session Capabilities ........................................................................................6-13
6.4.3 +FDIS:, Report Remote Station Capabilities...........................................................................................6-13
6.4.4 +FCFR, Indicate Confirmation to Receive ..............................................................................................6-13
6.4.5 +FTSI:, Report the Transmit Station ID..................................................................................................6-13
6.4.6 +FCSI:, Report the Called Station ID......................................................................................................6-13
6.4.7 +FPTS:, Receive Page Transfer Status..................................................................................................6-14
6.4.8 +FET:, Post Page Message Response...................................................................................................6-14
6.4.9 +FPTS:, Transmit Page Transfer Status.................................................................................................6-14
6.4.10 +FHNG:, Call Termination with Status..................................................................................................6-14
6.4.11 +FCIG:, Report the Polled Station ID ...................................................................................................6-15
6.4.12 +FDTC:, Report the Polled Station Capabilities ....................................................................................6-15
6.4.13 +FPOLL, Indicate Polling Request........................................................................................................6-15
6.5 SERVICE CLASS 2 PARAMETERS....................................................................................................................6-16
6.5.1 +FDCC, DCE Capabilities Parameters...................................................................................................6-16
6.5.2 +FDIS, Current Sessions Capabilities Parameters..................................................................................6-16
6.5.3 +FDCS, Current Session Results Parameters........................................................................................6-17
6.5.4 +FLID=, Local ID String .........................................................................................................................6-18
6.5.5 +FCR, Capability to Receive..................................................................................................................6-18
6.5.6 +FPTS=, Page Transfer Status..............................................................................................................6-18
6.5.7 +FCQ, Copy Quality Checking...............................................................................................................6-18
6.5.8 +FPHCTO, DTE Phase C Response Time-out .......................................................................................6-18
6.5.9 +FAXERR, T.30 Session Error Report ...................................................................................................6-19
6.5.10 +FBOR, Data Bit Order........................................................................................................................6-19
6.5.11 +FAA, Answer Parameter....................................................................................................................6-19
6.5.12 +FBUF?, Buffer Size............................................................................................................................6-20
6.6 EXAMPLE SESSIONS........................................................................................................................................6-20
7. VOICE/AUDIO COMMANDS.........................................................................................................................................7-1
7.1 VOICE/AUDIO SUBMODES .................................................................................................................................7-1
7.1.1 Online Voice Command Mode .................................................................................................................7-1
7.1.2 Voice Receive Mode................................................................................................................................7-1
7.1.3 Voice Transmit Mode............................................................................................................................... 7-2
7.2 VOICE/AUDIO CAPABILITIES..............................................................................................................................7-2
7.2.1 Call Establishment - Originate..................................................................................................................7-2
Directed Originate (Dial as a specific modem type)...............................................................................7-2
Adaptive Originate (Dial with Voice/Data/Fax Discrimination)................................................................. 7-2
7.2.2 Call Establishment - Answer ....................................................................................................................7-3
Directed Answer (Answer as a specific modem type)............................................................................7-3
Adaptive Answer (Answer with Voice/Data/Fax Discrimination)..............................................................7-3
7.2.3 Voice/Audio Data Transfer.......................................................................................................................7-4
7.2.4 Tone and Status Monitoring Shielded <DLE> Statuses............................................................................ 7-4
7.2.5 Shielded <DLE> Commands from the DTE..............................................................................................7-6
7.2.6 Voice Record...........................................................................................................................................7-8
7.2.7 Voice Playback........................................................................................................................................7-8
Volume Adjustment During Record .......................................................................................................7-8
Volume Adjustment During Playback ....................................................................................................7-8
7.2.8 Voice Call Termination.............................................................................................................................7-9
Local Disconnect..................................................................................................................................7-9
Remote Disconnect Detection...............................................................................................................7-9
7.2.9 Mode Switching.......................................................................................................................................7-9
Voice to Fax.........................................................................................................................................7-9
Unsuccessful Fax Connection Attempt to Voice .................................................................................... 7-9
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Voice to Data............................................................................................................................... .........7-9
Unsuccessful Data Connection Attempt to Voice...................................................................................7-9
7.2.10 Caller ID................................................................................................................................................7-9
7.3 AT VOICE COMMAND SUMMARY.....................................................................................................................7-10
7.3.1 Global AT Command Set Extensions .....................................................................................................7-10
ATA - Answering in Voice/Audio..........................................................................................................7-11
ATD - Dial Command in Voice/Audio...................................................................................................7-11
ATH - Hang Up in Voice/Audio............................................................................................................7-11
ATZ - Reset from Voice Mode.............................................................................................................7-12
#BDR - Select Baud Rate (Turn off Autobaud)....................................................................................7-12
#CID - Enable Caller ID Detection and Select Reporting Format.........................................................7-12
#CLS - Select Data, Fax, or Voice/Audio.............................................................................................7-14
#MDL? - Identify Model.......................................................................................................................7-14
#MFR? - Identify Manufacturer...........................................................................................................7-14
#REV? - Identify Revision Level..........................................................................................................7-14
7.3.2 AT#V Commands Enabled Only in Voice Mode (#CLS=8)......................................................................7-15
#TL- Audio Output Transmit Level ......................................................................................................7-15
#VBQ? - Query Buffer Size.................................................................................................................7-15
#VBS - Bits Per Sample......................................................................................................................7-15
#VBT - Beep Tone Timer....................................................................................................................7-16
#VCI? - Identify Compression Method.................................................................................................7-16
#VLS - Voice Line Select....................................................................................................................7-17
#VRA - Ringback Goes Away Timer (Originate)..................................................................................7-19
#VRN - Ringback Never Came Timer (Originate)................................................................................7-19
#VRX - Voice Receive ........................................................................................................................7-19
#VSD - Enable Silence Deletion (Voice Receive) [ADPCM].................................................................7-20
#VSK - Buffer Skid Setting..................................................................................................................7-20
#VSP - Silence Detection Period (Voice Receive) [ADPCM]................................................................7-21
#VSR - Sampling Rate Selection.........................................................................................................7-21
#VSS - Silence Detection Tuner (Voice Receive) [ADPCM].................................................................7-22
#VTD - DTMF Tone Reporting............................................................................................................7-23
#VTM - Enable Timing Mark Placement..............................................................................................7-24
#VTS - Generate Tone Signals (Online Voice Command) ...................................................................7-24
#VTX - Voice Transmit........................................................................................................................7-25
#VGT - Set Playback Volume in the Command State..........................................................................7-25
<DLE><u> and <DLE><d> - Set Playback Volume in the Data State...................................................7-25
7.3.3 Speakerphone Commands ....................................................................................................................7-25
Originating a Call in Speakerphone Mode ...........................................................................................7-26
Answering a Call in Speakerphone Mode............................................................................................7-26
Muting the Local Handset During Phone Conversation - Music on Hold...............................................7-26
Recording a Handset Conversation on the Phone Line........................................................................7-27
Recording/Playback from Handset through Sound Chip ......................................................................7-27
#SPK Parameter ................................................................................................................................7-27
Room Monitor.....................................................................................................................................7-29
Switching Between #VLS Settings.......................................................................................................7-29
Reporting of Local Handset Status......................................................................................................7-29
7.3.4 Using VoiceView with Speakerphone, Headset, and Handset modes......................................................7-30
Using Modem as Dialer Prior to VoiceView Mode................................................................................7-31
7.4 S-REGISTERS ...................................................................................................................................................7-32
S30 - Disconnect Inactivity Timer........................................................................................................7-32
7.5 RESULT CODES FOR VOICE OPERATION.......................................................................................................7-32
7.6 EXAMPLES OF VOICE OPERATION .................................................................................................................7-32
8. AT COMMAND SET SUMMARY............................................................................................................................... ....8-1
8.1 BASIC AT COMMANDS........................................................................................................................................8-1
8.2 ECC COMMANDS................................................................................................................................................8-4
8.3 MNP 10 COMMANDS...........................................................................................................................................8-5
AT Command Reference Manual
8.4 W-CLASS COMMANDS........................................................................................................................................8-5
8.5 CALLER ID COMMANDS .....................................................................................................................................8-5
8.6 FAX CLASS 1.......................................................................................................................................................8-5
8.7 FAX CLASS 2.......................................................................................................................................................8-6
8.8 VOICE/AUDIO COMMANDS.................................................................................................................................8-7
8.9 CELLULAR COMMANDS......................................................................................................................................8-7
8.10 AUDIOSPAN AND DSVD COMMANDS ..............................................................................................................8-7
8.11 SYNCHRONOUS ACCESS MODE COMMANDS................................................................................................8-7
9. COMMON CONFIGURATION SETUP STRINGS ..........................................................................................................9-1
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List of Tables
Table 3-1. Result Codes..................................................................................................................................................3-11
Table 4-1. S-Register Summary.........................................................................................................................................4-2
Table 5-1. Fax Class 1 Commands....................................................................................................................................5-1
Table 5-2. Fax Class 1 Calling Sequence (One Page)........................................................................................................5-7
Table 5-3. Fax Class 1 Answering Sequence (One Page).................................................................................................. 5-8
Table 6-1. Fax Class 2 Commands....................................................................................................................................6-2
Table 6-2. T.30 Session Subparameter Codes...................................................................................................................6-7
Table 6-3. T.30 Post Page Message Codes.......................................................................................................................6-8
Table 6-4. T.30 Post Page Response Messages................................................................................................................6-8
Table 6-5. Hang Up Status Codes ...................................................................................................................................6-12
Table 6-6. Send Two Pages, 1-D, No Errors....................................................................................................................6-21
Table 6-7. Receive Two Pages, 1-D Data, No Errors........................................................................................................6-22
Table 7-2. Codes Sent to the DTE.....................................................................................................................................7-5
Table 7-3. Shielded DTE Codes.........................................................................................................................................7-7
Table 7-5. Device Types Supported by #VLS...................................................................................................................7-18
Table 7-6. #VTD Tone Detection/Reporting Bit Settings ...................................................................................................7-23
Table 7-7. Record a Greeting Message ...........................................................................................................................7-33
Table 7-8. Playback a Greeting Message.........................................................................................................................7-35
Table 7-9. Answer Call/Play Greeting/Record Message ...................................................................................................7-36
Table 7-10. Call/Record Message/Receive Fax................................................................................................................ 7-38
Table 7-11. Answer Call, Determine It's a Fax..................................................................................................................7-40
Table 7-12. Adaptive Fax/Data/Voice; Determine Data.....................................................................................................7-41
Table 7-13. Originate a Call, Send Answerer a Message..................................................................................................7-42
List of Figures
AT Command Reference Manual
1. INTRODUCTION
1.1 OVERVIEW
This manual describes the AT commands for the following Rockwell modem families:
RC56ACi RCV56ACFL/SP RCV56ACF/SP RCV56ACF/SVD
RC336ACi RC336ACL RC336ACFL/SP RCV336ACi/SP RCV336ACF/SP RCV336ACF/SVD
RC288ACi RC288ACL RC288ACLW-GSM RCV288ACi/SP
RC144ACi and RC144ATi RC144ACL and RC144ATL RC144ACG RC144ACF/ATF RC144ACFL/ATFL RCV144ACi/SP RCV144ACF/SP
The descriptions apply to all these modems with any differences between modem product families noted. Refer to Modem Firmware Release notes for commands applicable to modem firmware.
ATi, ATL, ATF, and ATFL models support error correction and data compression (ECC) performed by the host CPU and communications software for Windows using the enhanced Rockwell Windows Protocol Interface (RPI or RPI+™) and WinRPI host software module.
1.1.1 Command Syntax
The fundamental DTE interface command syntax is described in Section 2.
1.1.2 Command Descriptions
These commands are grouped into the following categories:
AT commands Section 3 S-Registers Section 4 Fax Class 1 commands Section 5 Fax Class 2 commands Section 6 Voice/Audio commands Section 7 AT Command Summary Section 8
The AT commands are implemented in microcontroller (MCU) firmware for specific modem models. The support for a command category is identified by modem model in the modem designer's guide. Additional configuration and implementation information is available in release notes and/or readme files that accompany MCU firmware release.
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1.1.3 Call Progress and Blacklisting Parameters
The 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.
compatible 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.
1.1.4 ConfigurACE II for Windows Utility Program
The PC-based ConfigurACE II for Windows utility program allows the OEM to customize the 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 register maximum/minimum values Limitation of transmit levels Modification of factory default values Customization of the ATI4 response Customization of fax OEM messages
This program modifies the hex object code which can be programmed directly into the system EPROM. Lists of the generated parameters can be displayed or printed.
Rockwell-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.
The modem MCU firmware can be configured for operation in specific countries by the PC-
Specific MCU firmware configurations may be released that can be directly installed without requiring
1.2 REFERENCE DOCUMENTATION
RC144ACF and RC144ATF Modem Designer's Guide (Order No. 1055) RC144ACF/ASVD and RCV288ACF/ASVD Modem Designer’s Guide (Order No. 1082) RC144ACF/SP and RC144ATF Modem Designer's Guide (Order No. 1046) RC144ACG Modem Designer's Guide (Order No. 1108) RC144ACi and RC144ACL Modem Designer's Guide (Order No. 876) RC144ATi and RC144ATL Modem Designer's Guide (Order No. 897) RC288ACi and RC288ACL Modem Designer's Guide (Order No. 1027) RC288ACL/SVD SP Modem Designer’s Guide (Order No. 1096) RCV336ACL Modem Designer’s Guide (Order No. 1121) RCV56ACF/SP, RCV336ACF/SP, and RC288ACF/SP Modem Designer’s Guide (Order No. 1046) RCV56ACF/SVD and RCV336ACF/SVD Modem Designer’s Guide (Order No. 1105) RCV336ACFL/SVD Modem Designer’s Guide (Order No. 1062) RCV56ACFL/SVD and RCV336ACFL/SVD Modem Designer’s Guide (Order No. 1121) RCV56ACi and RCV336ACi Modem Designer’s Guide (Order No. 1117)
AT Command Reference Manual
2. COMMAND SYNTAX
2.1 DTE/DCE INTERCHANGE CIRCUITS
Communication between the DTE and modem is half duplex (i.e., only one entity 'talks' at a time).
2.2 COMMAND SYNTAX AND GUIDELINES
2.2.1 DTE Commands
The ISO 646 character set (CCITT T.50 International Alphabet 5, American Standard Code for Information Interchange) is used for the issuance of commands and responses. Only the low-order 7 bits of each character are used for commands or parameters; the high-order bit is ignored. Upper case characters are equivalent to lower case characters.
2.2.2 DTE Command Lines
A command line is a string of characters sent from a DTE to the DCE while the DCE is in a command state. Command lines have a prefix, a body, and a terminator. The prefix consists of the ASCII characters “AT” (065, 084) or “at” (097, 116). The body is a string of commands restricted to printable ASCII characters (032 - 126). Space characters (ASCII 032) and control characters other than carriage return <CR> (default value = ASCII 013 = 0Dh, see register S3), backspace <BS> (default value = ASCII 008 = 08h, see register S5), and cancel <cntrl-x> (ASCII 024 = 18h) in the command string are ignored. The default terminator is the <CR> character. Characters that precede the AT prefix are ignored.
2.3 AT COMMAND GUIDELINES
Modem operation is controlled by generic AT commands. These AT commands may be basic AT (i.e., commands preceded by AT, AT&, AT%, AT*, AT\, AT), AT-, or AT#), S-Register (e.g., S6=n), Fax class 1 (e.g., +FTM), Fax class 2 (e.g., +FDCS:), or voice (e.g., #VBS) commands. The command syntax and operation guidelines governing each of these command categories are described in subsequent sections.
2.3.1 Basic Command Syntax
Characters within the command line are parsed as commands with associated parameter values. The basic commands consist of single ASCII characters, or single characters preceded by a prefix character, followed by a decimal parameter (e.g., “&D1"). Missing decimal parameters are evaluated as 0.
2.3.2 Extended Command Syntax
The facsimile commands use extended syntax. They are preceded by the “+F” characters, and they are terminated by the semicolon “:” character (ASCII 059) or by the <CR> that terminates the command line.
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AT Command Reference Manual
3. AT COMMAND SET
3.1 AT COMMAND GUIDELINES
The basic AT commands used to control modem operation are defined in this section. These commands are summarized in Appendix A. All these commands may not be available in a specific product depending upon supported data rates and modes. The default values are typical of a fully configured modem supporting all data rates and options. The actual default value is dependent upon modem firmware as defined by the firmware release notes.
3.1.1 AT Commands, DTE Adaption
Under AT operation, the serial interfaced modem performs an autobaud/autoparity/autolength function on each AT header entered. The autolength/autoparity facility can detect 7- or 8-bit characters of even, odd, or no parity with one stop bit. This is not necessary for the parallel interfaced modem since it has direct access to the UART registers.
3.1.2 AT Command Format
A command line is a string of characters sent from a DTE to the modem (DCE) while the modem is in a command state. A command line has a prefix, a body, and a terminator. Each command line (with the exception of the A/ command) must begin with the character sequence AT and must be terminated by a carriage return. Commands entered in upper case or lower case are accepted, but both the A and T must be of the same case, i.e., "AT" = ASCII 065, 084 or “at” = ASCII 097,
116. The body is a string of commands restricted to printable ASCII characters (032 - 126). Space characters (ASCII 032) and control characters other than CR (ASCII 013) and BS (ASCII 010) in the command string are ignored. The default terminator is the ASCII <CR> character. Characters that precede the AT prefix are ignored. The command line interpretation begins upon receipt of the carriage return character.
Characters within the command line are parsed as commands with associated parameter values. The basic commands consist of single ASCII characters, or single characters preceded by a prefix character (e.g., “&"), followed by a decimal parameter. Missing decimal parameters are evaluated as 0.
The modem supports the editing of command lines by recognizing a backspace character. When modem echo is enabled, the modem responds to receipt of a backspace or delete by echoing a backspace character, a space character, and another backspace. The hex value to be used for the backspace character is programmable through register S5. Values equal to 0 or greater than 127, or the value which corresponds to the carriage return character, cannot be used for the backspace character. This editing is not applicable to the AT header of a command. A command line may be aborted at any time by entering < cntrl-x > (18h).
The AT sequence may be followed by any number of commands in sequence, except for commands such as Z, D, or A. Commands following commands Z, D, or A on the same command line will be ignored. The maximum number of characters on any command line is 39 (including "A" and "T"). If a syntax error is found anywhere in a command line command, the remainder of the line will be ignored and the ERROR result code will be returned.
Most commands entered with parameters out of range will not be accepted and the ERROR response will be returned to the DTE.
Commands will only be 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 re-execute command, will be aborted if another character is entered before completion of the handshake.
3.1.3 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.
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3.2 AT COMMAND SET
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 Rockwell factory profile 0.
3.2.1 AT Commands A/ - Re-execute Command
The modem behaves as though the last command line had been re-sent by the DTE. "A/" will repeat all the commands in the command buffer.
The principal application of this command is to place another call (using the Dial command) that failed to connect due to a busy line, no answer, or a wrong number. This command must appear alone on a command line. This command should not be terminated by a carriage return.
AT= x - Write to Selected S-Register
This command writes the value x to the currently selected S-Register. An S-Register can be selected by using the ATSn command. All of the S-Registers will return the OK response if x is a number. Some registers may not be written due to country specific PTT limitations.
Result Codes
OK For all arguments.
AT? - Read Selected S-Register
This command reads and displays the selected S-Register. An S-Register can be selected by using the ATSn command. Result Codes:
OK For all arguments.
A - Answer
The modem will go off-hook and attempt to answer an incoming call if correct conditions are met. Upon successful completion of answer handshake, the modem will go on-line in answer mode. This command may be affected by the state of Line Current Sense, if enabled. (Most countries do not require Line Current Sense.) Operation is also dependent upon +FCLASS command and country-specific requirements.
If +FCLASS=0 is selected, the modem will enter the connect state after exchanging carrier with the remote modem. If no carrier is detected within a period specified in register S7, the modem hangs up. Any character entered during the connect sequence will abort the connection attempt.
If +FCLASS=1 or 2 is selected, the modem will go off-hook in V.21 answer mode. It will generate the V.21 2100 Hz answer tone for 3 ± 0.5 seconds and, following a delay of 70 ms, will proceed as if the +FTH=3 command were issued. At any stage up to (but excluding) the +FTH=3 command state, any character will abort the communication. (See the description of the +FTH command for details.)
Bn - CCITT or Bell
When the modem is configured to allow either option, the modem will select Bell or CCITT modulation for a line speed connection of 300 or 1200 bps according to the parameter supplied. Any other line speed will use a CCITT modulation standard. The parameter value, if valid, is written to S27 bit 6. (Also, see ATFn command.)
B0 Selects CCITT operation at 300 or 1200 bps during Call Establishment and a subsequent
connection. (Default for W-class models.)
B1 Selects BELL operation at 300 or 1200 bps during Call Establishment and a subsequent
connection. (Default for US models.)
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
AT Command Reference Manual
Cn - Carrier Control
This command is included for compatibility only, and has no effect other than returning a result code. The only valid parameter is 1.
Result Codes:
OK n = 1. ERROR Otherwise.
Dn - Dial
This command directs the modem to go on-line, dial according to the string entered and attempt to establish a connection. If no dial string is supplied, the modem will go on-line and attempt the handshake in originate mode. In W-class models, the action of going off-hook is affected by the status of the Line Current Sense input, if line current sensing is enabled, and by the blacklist and delayed list. respond with the NO CARRIER result code.
If +FCLASS=0 is selected, the modem will behave as a data modem and will attempt to connect to another data modem. The modem will have up to the period of time specified by register S6 or S7 to wait for carrier and complete the handshake. If this time expires before the modem can complete the handshake, the modem will go on-hook with the NO CARRIER response. This command will be aborted in progress upon receipt of any DTE character before completion of the handshake.
If +FCLASS=1 or 2 is selected, the modem will behave as a facsimile modem and attempt to connect to a facsimile machine (or modem) by entering the HDLC V.21 channel 2 receive state (as if +FRH=3 had been issued). This command will be aborted upon receipt of any DTE character if the modem has not finished dialing. In this case, the modem will go on-hook and return to command mode after displaying the NO CARRIER message. If the modem has finished dialing, it proceeds as if the +FRH=3 command has been issued. (Refer to the +FRH command to determine how the modem behaves following this stage.)
NOTE:
If the ATD command is issued before the S1 register has cleared, the modem will
Dial Modifiers. The valid dial string parameters are described below. Punctuation characters may be used for clarity, with parentheses, hyphen, and spaces being ignored.
0-9 DTMF digits 0 to 9. * The 'star' digit (tone dialing only). # The 'gate' digit (tone dialing only). A-D DTMF digits A, B, C, and D. Some countries may prohibit sending of these digits during dialing. L Re-dial last number: the modem will re-dial the last valid telephone number. The L must be
immediately after the D with all the following characters ignored).
P Select pulse dialing: pulse dial the numbers that follow until a "T" is encountered. Affects current and
subsequent dialing. Some countries prevent changing dialing modes after the first digit is dialed.
T Select tone dialing: tone dial the numbers that follow until a "P" is encountered. Affects current and
subsequent dialing. Some countries prevent changing dialing modes after the first digit is dialed. R This command will be accepted, but not acted on. S=n Dial the number stored in the directory (n = 0 to 3). (See &Z.) ! Flash: the modem will go on-hook for a time defined by the value of S29. Country requirements may
limit the time imposed. W Wait for dial tone: the modem will wait for dial tone before dialing the digits following "W". If dial tone
is not detected within the time specified by S7 (US) or S6 (W-class), the modem will abort the rest
of the sequence, return on-hook, and generate an error message.
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@ Wait for silence: the modem will wait for at least 5 seconds of silence in the call progress frequency
band before continuing with the next dial string parameter. If the modem does not detect these 5
seconds of silence before the expiration of the call abort timer (S7), the modem will terminate the
call attempt with a NO ANSWER message. If busy detection is enabled, the modem may terminate
the call with the BUSY result code. If answer tone arrives during execution of this parameter, the
modem handshakes. & Wait for credit card dialing tone before continuing with the dial string. If the tone is not detected
within the time specified by S7 (US models) or S6 (W-class models), the modem will abort the rest
of the sequence, return on-hook, and generate an error message. , Dial pause: the modem will pause for a time specified by S8 before dialing the digits following ",". ; Return to command state. Added to the end of a dial string, this causes the modem to return to the
command state after it processes the portion of the dial string preceding the ";". This allows the user
to issue additional AT commands while remaining off-hook. The additional AT commands may be
placed in the original command line following the ";" and/or may be entered on subsequent
command lines. The modem will enter call progress only after an additional dial command is issued
without the ";" terminator. Use "H" to abort the dial in progress, and go back on-hook. ^ Toggles calling tone enable/disable: applicable to current dial attempt only. ( ) Ignored: may be used to format the dial string.
- Ignored: may be used to format the dial string. <space> Ignored: may be used to format the dial string. <i> Invalid character: will be ignored. > If enabled by country specific parameter, the modem will generate a grounding pulse on the EARTH
relay output.
En - Command Echo
The modem enables or disables the echo of characters to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 1.
E0 Disables command echo. E1 Enables command echo. (Default.)
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
AT Command Reference Manual
Fn - Select Line Modulation (RC144 Models Only)
This command selects the line modulation according to the parameter supplied. The line modulation is fixed unless Automode is selected. This command interacts with the S37 and the N command. The parameter value, if valid, is written to S37 bits 0-4. To select line modulation, it is recommended that either the F command, or a combination of the S37 and the N command, be used, but not both.
F0 Selects auto-detect mode. Sets N1 and sets S31 bit 1. In this mode, the modem configures for
automode operation. All connect speeds supported by the modem are possible according to the remote modem's preference. The contents of S37 are ignored as is the sensed DTE speed.
F1 Selects V.21 or Bell 103 according to the B setting as the only acceptable line speed resulting in a
subsequent connection. Sets N0, sets S37 to 1, and clears S31 bit 1. This command is equivalent
to the command string: ATN0S37=1. F2 Not supported. F3 Selects V.23 as the only acceptable line modulation for a subsequent connection. Originator is at
75 bps and answerer is at 1200 bps. Sets N0, sets S37 to 7, and clears S31 bit 1. This command
is equivalent to the command string: ATN0S37=7. F4 Selects V.22 1200 or Bell 212A according to the B command setting as the only acceptable line
speed for a subsequent connection. Sets N0, sets S37 to 5, and clears S31 bit 1. This command
is equivalent to the command string: ATN0S37=5. F5 Selects V.22 bis as the only acceptable line modulation for a subsequent connection. Sets N0,
sets S37 to 6, and clears S31 bit 1. This command is equivalent to the command string:
ATN0S37=6. F6 Select V.32 bis 4800 or V.32 4800 as the only acceptable line modulation for a subsequent
connection. Sets N0, sets S37 to 8, and clears S31 bit 1. This command is equivalent to the
command string: ATN0S37=8. F7 Selects V.32 bis 7200 as the only acceptable line modulation for a subsequent connection. Sets
N0, sets S37 to 12, and clears S31 bit 1. This command is equivalent to the command string:
ATN0S37=12.
This setting also allows connection at the Rockwell proprietary 7200 V.32 speed, e.g., with a
RC9696/12 based modem. F8 Selects V.32 bis 9600 or V.32 9600 as the only acceptable line modulations for a subsequent
connection. Sets N0, sets S37 to 9, and clears S31 bit 1. This command is equivalent to the
command string: ATN0S37=9. F9 Selects V.32 bis 12000 as the only acceptable line modulation for a subsequent connection. Sets
N0, sets S37 to 10, and clears S31 bit 1. This command is equivalent to the command string:
ATN0S37=10.
This setting also allows connection at the Rockwell proprietary 12000 V.32 speed, e.g., with a
RC9696/12 based modem. F10 Selects V.32 bis 14400 as the only acceptable line modulation for a subsequent connection. Sets
N0, sets S37 to 11, and clears S31 bit 1. This command is equivalent to the command string:
ATN0S37=11.
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Hn - Disconnect (Hang-Up)
This command initiates a hang up sequence. This command may not be available for some countries due to PTT restrictions.
H0 The modem will release the line if the modem is currently on-line, and will terminate any test
(AT&T) that is in progress. Country specific, modulation specific, and error correction protocol
specific (S38) processing is handled outside of the H0 command. H1 If on-hook, the modem will go off-hook and enter command mode. For US models, the modem
will remain off-hook. For W-class models, the modem will return on-hook after a period of time
determined by S7.
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
In - Identification
The modem reports to the DTE the requested result according to the command parameter.
I0 Reports product code. Example: 28800 I1 Calculates the ROM checksum and reports the least significant byte of the checksum in decimal
(see firmware release notes). Reports 255 if the prestored checksum value is FFh. I2 Calculates the ROM checksum and compares it with the prestored checksum. Reports "OK" if the
calculated checksum equals the prestored checksum or if the prestored checksum value is FFh;
otherwise reports “ERROR”. I3 Reports the firmware version (F), basic model (e.g.,V34), application code (A), and interface type
code (I) typically in the form VF.FFF-V34_AI. The application codes are: D = Desktop, L = Low
Power (PCMCIA). The interface type codes are: S = Serial, P = Parallel. Example: V1.400-
V34_DS
Note: If RPI+ is supported, “ROCKWELL RPI (TM)” is appended. I4 Reports OEM defined identifier string in either Hayes-compatible binary format (default) or ASCII
format (selectable by ConfigurACE). Example: RC288ACi (ASCII) I5 Reports Country Code parameter. Example: 022 I6 Reports modem data pump model and internal code revision. Example: RC288DPi Rev 05BA I7 Reports the DAA code resulting from MCU interrogation of the DAA for auto DAA recognition.
Examples: 000 for US or Canada, 016 for Japan, 033 for Belgium, 034 for Finland, 035 for
France, 037 for Italy, 038 for Netherlands, 039 for Sweden, 040 for Switzerland, and 041 for UK.
Result Codes:
OK n = 0 to 7. ERROR Otherwise.
Ln - Speaker Volume
The modem sets the speaker volume control according to the parameter supplied. The parameter value, if valid, is written to S22 bits 0 and 1.
L0 Low volume. L1 Low volume. (Default.) L2 Medium volume. L3 High volume.
Result Codes:
OK n = 0 to 3. ERROR Otherwise.
AT Command Reference Manual
Mn - Speaker Control
This command selects when the speaker will be on or off. The parameter value, if valid, is written to S22 bits 2 and 3.
M0 Speaker is always off. M1 Speaker is on during call establishment, but off when receiving carrier. (Default.) M2 Speaker is always on. M3 Speaker is off when receiving carrier and during dialing, but on during answering.
Result Codes:
OK n = 0 to 3. ERROR Otherwise.
Nn - Automode Enable
This command enables or disables automode detection. The parameter value, if valid, is written to S31 bit 1.
N0 Automode detection is disabled (equivalent to setting the +MS <automode> subparameter to 0). A
subsequent handshake will be conducted according to the contents of S37 or, if S37 is zero,
according to the most recently sensed DTE speed. N1 Automode detection is enabled (equivalent to setting the +MS <automode> subparameter to 1). A
subsequent handshake will be conducted according the automode algorithm supported by the
modem, e.g., according to the contents of S37 or, if S37 is zero, starting at 28800 bps V.34
(RC288). This command is also equivalent to F0 (RC144). (Default.)
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
Notes:
1. The Nn and S37=x commands override the +MS command settings. When the N0 or N1 command is issued, the +MS subparameters are updated to reflect the Nn and S37 values (see +MS command and S37 register). For example:
N1S37=10 updates the +MS command subparameters to reflect +MS=10,1,300,12000 N0S37=10 updates the +MS command subparameters to reflect +MS=10,0,12000,12000
2. Use of the +MS command is recommended instead of the Nn and S37=x commands. Nn and S37=x commands are supported for compatibility with existing communication software.
On - Return to On-Line Data Mode
This command determines how the modem will enter the on-line data mode. If the modem is in the on-line command mode, the enters the on-line data mode with or without a retrain. If the modem is in the off-line command mode (no connection), ERROR is reported.
O0 Enters on-line data mode without a retrain. Handling is determined by the Call Establishment task.
Generally, if a connection exists, this command connects the DTE back to the remote modem after an escape (+++).
O1 Enters on-line data mode with a retrain before returning to on-line data mode.
Result Codes:
OK n = 0 or 1 and a connection exists. ERROR Otherwise or if not connected.
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P - Set Pulse Dial Default
This command forces pulse dialing until the next T dial modifier or T command is received. Sets S14 bit 5. As soon as a dial command is executed which explicitly specifies the dialing mode for that particular call (e.g., ATDT...), this
command is overridden so that all future dialing will be tone dialed. (See T command.) This command may not be permitted in some countries. Result Code:
OK
Qn - Quiet Results Codes Control
The command enables or disables the sending of result codes to the DTE according to the parameter supplied. The parameter value, if valid, is written to S14 bit 2.
Q0 Enables result codes to the DTE. (Default.) Q1 Disables result codes to the DTE.
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
Sn - Read/Write S-Register
The modem selects an S-Register, performs an S-Register read or write function, or reports the value of an S-Register.
n Establishes S-Register n as the last register accessed. n=v Sets S-Register n to the value v. n? Reports the value of S-Register n.
The parameter n can be omitted, in which case the last S-Register accessed will be assumed. The S can be omitted for AT= and AT?, in which case the last S-Register accessed will be assumed.
For example:
ATS7 establishes S7 as the last accessed register. AT=40 sets the contents of the last register accessed to 40. ATS=20 sets the contents of the last register accessed to 20.
If the number "n" is beyond the range of the S-Registers available, the modem will return the ERROR message. The value "v" is "MOD"ed with 256. If the result is outside the range permitted for a given S-Register the values will still be stored, but functionally the lower and higher limits will be observed. Input and output are always in decimal format. Note that some S­Registers are read-only.
In some cases, writing to the S-Register will appear to be accepted but the value will not actually be written. Due to country restrictions, some commands will be accepted, but the value may be limited and replaced by a maximum or
minimum value. Minimum, maximum, and default values for S-Registers may be altered with ConfigurACE.
AT Command Reference Manual
T - Set Tone Dial Default
This command forces DTMF dialing until the next P dial modifier or P command is received. The modem will set an S­Register bit to indicate that all subsequent dialing should be conducted in tone mode. Note that the DP command will override this command. Clears S14 bit 5.
This command may not be permitted in some countries. (See P.) Result Code:
OK
Vn - Result Code Form
This command selects the sending of short-form or long-form result codes to the DTE. The parameter, if valid, is written to S14 bit 3.
V0 Enables short-form (terse) result codes. Line feed is not issued before a short-form result code. V1 Enables long-form (verbose) result codes. (Default.)
Result Codes:
OK n = 0 or 1. ERROR Otherwise.
Wn - Connect Message Control
This command controls the format of CONNECT messages. The parameter value, if valid, is written to S31 bits 2 and 3. Note that the Wn command can be overridden by register S95 bits (see S95 description).
W0 Upon connection, the modem reports only the DTE speed (e.g., CONNECT 19200). Subsequent
W1 Upon connection, the modem reports the line speed, the error correction protocol, and the DTE
W2 Upon connection, the modem reports the DCE speed (e.g., CONNECT 14400). Subsequent
Result Codes:
OK n = 0, 1, or 2. ERROR Otherwise.
responses are disabled. (Default.)
speed, respectively. Subsequent responses are disabled.
responses are disabled.
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Xn - Extended Result Codes
This command selects which subset of the result messages will be used by the modem to inform the DTE of the results of commands.
Blind dialing is enabled or disabled by country parameters. If the user wishes to enforce dial tone detection, a "W" can be placed in the dial string (see D command). Note that the information below is based upon the default implementation of the X results table. Table 3-1 indicates the messages which are enabled for each X value.
If the modem is in facsimile mode (+FCLASS=1 or 2), the only message sent to indicate a connection is CONNECT without a speed indication.
X0 Disables monitoring of busy tones unless forced otherwise by country requirements; send only
OK, CONNECT, RING, NO CARRIER, ERROR, and NO ANSWER result codes. Blind dialing is enabled/disabled by country parameters. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported. If dial tone detection is enforced or selected and dial tone is not detected, NO CARRIER will be reported instead of NO DIAL TONE. The value 000b is written to S22 bits 6, 5, and 4, respectively.
X1 Disables monitoring of busy tones unless forced otherwise by country requirements; send only
OK, CONNECT, RING, NO CARRIER, ERROR, NO ANSWER, and CONNECT XXXX (XXXX = rate). Blind dialing enabled/disabled by country parameters. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported instead of BUSY. If dial tone detection is enforced or selected and dial tone is not detected, NO CARRIER will be reported instead of NO DIAL TONE. The value 100b is written to S22 bits 6, 5, and 4, respectively.
X2 Disables monitoring of busy tones unless forced otherwise by country requirements; send only
OK, CONNECT, RING, NO CARRIER, ERROR, NO DIALTONE, NO ANSWER, and CONNECT XXXX. If busy tone detection is enforced and busy tone is detected, NO CARRIER will be reported instead of BUSY. If dial tone detection is enforced or selected and dial tone is not detected, NO DIAL TONE will be reported instead of NO CARRIER. The value 101b is written to S22 bits 6, 5, and 4, respectively.
X3 Enables monitoring of busy tones; send only OK, CONNECT, RING, NO CARRIER, ERROR, NO
ANSWER, and CONNECT XXXX. Blind dialing is enabled/disabled by country parameters. If dial tone detection is enforced and dial tone is not detected, NO CARRIER will be reported. The value 110b is written to S22 bits 6, 5, and 4, respectively.
X4 Enables monitoring of busy tones; send all messages. The value 111b is written to S22 bits 6, 5,
and 4, respectively. (Default.)
Result Codes:
OK n = 0 to 4. ERROR Otherwise.
AT Command Reference Manual
Table 3-1. Result Codes
Short Form Long Form n Value in ATXn Command Notes
01234
0OK xxxxx 1 CONNECT xxxxx 2 RING xxxxx 3 NO CARRIER xxxxx 4 ERROR xxxxx 5 CONNECT 1200 1 xxxx 6 NO DIALTONE 3 3 x x x 7 BUSY 3 3 3 x x 8 NO ANSWER xxxxx
9 CONNECT 0600 1 xxxx 10 CONNECT 2400 1 xxxx 11 CONNECT 4800 1 xxxx 12 CONNECT 9600 1 xxxx 13 CONNECT 7200 1 xxxx 14 CONNECT 12000 1 xxxx 15 CONNECT 14400 1 xxxx 16 CONNECT 19200 1 xxxx 17 CONNECT 38400 1 xxxx 18 CONNECT 57600 1 xxxx 19 CONNECT 115200 1 xxxx 20 CONNECT 230400 xxxxxNote 4 22 CONNECT 75TX/1200RX 1 xxxx 23 CONNECT 1200TX/75RX 1 xxxx 24 DELAYED 4444x 32 BLACKLISTED 4444x 33FAX xxxxx 35 DATA xxxxx 40 CARRIER 300 xxxxx 44 CARRIER 1200/75 xxxxx 45 CARRIER 75/1200 xxxxx 46 CARRIER 1200 xxxxx 47 CARRIER 2400 xxxxx 48 CARRIER 4800 xxxxx 49 CARRIER 7200 xxxxx 50 CARRIER 9600 xxxxx 51 CARRIER 12000 xxxxx 52 CARRIER 14400 xxxxx 53 CARRIER 16800 xxxxxNote 2 54 CARRIER 19200 xxxxxNote 2 55 CARRIER 21600 xxxxxNote 2 56 CARRIER 24000 xxxxxNote 2 57 CARRIER 26400 xxxxxNote 2 58 CARRIER 28800 xxxxxNote 2 59 CONNECT 16800 1 xxxxNote 2 61 CONNECT 21600 1 xxxxNote 2 62 CONNECT 24000 1 xxxxNote 2
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Table 3-1. Result Codes (Cont'd)
Short Form Long Form n Value in ATXn Command Notes
01234
63 CONNECT 26400 1 x x x x Note 2 64 CONNECT 28800 1 x x x x Note 2 66 COMPRESSION: CLASS 5 xxxxx 67 COMPRESSION: V.42 bis xxxxx 69 COMPRESSION: NONE xxxxx 70 PROTOCOL: NONE xxxxx 77 PROTOCOL: LAPM xxxxx 78 CARRIER 31200 xxxxxNote 3 79 CARRIER 33600 xxxxxNote 3 80 PROTOCOL: ALT xxxxx 81 PROTOCOL: ALT-CELLULAR xxxxx 84 CONNECT 33600 1 x x x x Note 3 91 CONNECT 31200 1 x x x x Note 3
150 CARRIER 32000 xxxxxNote 4 151 CARRIER 34000 xxxxxNote 4 152 CARRIER 36000 xxxxxNote 4 153 CARRIER 38000 xxxxxNote 4 154 CARRIER 40000 xxxxxNote 4 155 CARRIER 42000 xxxxxNote 4 156 CARRIER 44000 xxxxxNote 4 157 CARRIER 46000 xxxxxNote 4 158 CARRIER 48000 xxxxxNote 4 159 CARRIER 50000 xxxxxNote 4 160 CARRIER 52000 xxxxxNote 4 161 CARRIER 54000 xxxxxNote 4 162 CARRIER 56000 xxxxxNote 4 165 CONNECT 32000 xxxxxNote 4 166 CONNECT 34000 xxxxxNote 4 167 CONNECT 36000 xxxxxNote 4 168 CONNECT 38000 xxxxxNote 4 169 CONNECT 40000 xxxxxNote 4 170 CONNECT 42000 xxxxxNote 4 171 CONNECT 44000 xxxxxNote 4 172 CONNECT 46000 xxxxxNote 4 173 CONNECT 48000 xxxxxNote 4 174 CONNECT 50000 xxxxxNote 4 175 CONNECT 52000 xxxxxNote 4 176 CONNECT 54000 xxxxxNote 4 177 CONNECT 56000 xxxxxNote 4 +F4 +FCERROR xxxxx
Notes:
1. An 'x' in a column indicates that the message (either the long form if verbose, or the value only for short form) will be generated when that particular value of 'n' (shown at the top of the column) has been selected by the use of ATXn. If the column is blank, then no message will be generated for that x option. A numeral indicates which less explicit message (verbose or short form) will be output for that X option. (Also, see Section 3.3).
2. RC288 and higher rate modems.
3. RC336 and higher rate modems.
4. RC56 modems.
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