Compaq Armada 7700 33.6Kbps Modem Commands for Armada 7000 Family of Personal
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- Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 1
:+,7(3$3(5 October 1997 . . Prepared By . Portables Division . . Compaq . Computer . Corporation . . . . . . . . . . CONTENTS to . ASCII Conversion Table 49 . . . . . . . . . . . . . . . . . . . . MODEM COMMANDS ARMADA 7000 FAMILY OF PERSONAL COMPUTERS - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 2
USE OF THIS MATERIAL. . . This document contains information protected by copyright. No part of this guide may be . photocopied or reproduced in any form without prior written consent from Compaq Computer . Corporation. . . Compaq and LTE are registered in the U. S. Patent and Trademark Office - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 3
maximum, the modem does not execute any part of the command line and returns an error will not execute the . . command.Compaq Hardware . N Type commands following the AT prefix in uppercase the command buffer until the modem is reset or . power to the modem is turned off. Both actions clear the - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 4
steps to break out of a data transfer session (online mode) and return to . command mode: . . Press and hold the Shift key and type +++ . . An OK result code is displayed. . . Enter modem commands as needed. . . . Resume online session by entering AT0 command or terminate the connection - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 5
You can modify or change the value of an S register from Command Mode (Terminal Mode) or . from a standard data or fax communication application. For example: . . N Type ATS11=70 then press Enter. . . This sets S11 to a value of 70. . N If you then enter AT = 95. it resets S11 to a value of - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 6
: 3 +,7( $3(5 (cont.) . . Reading an S Register . . To read the contents of a given S register in the terminal mode (command mode), type ATSn? . (where "n" is the number of the register) then press Enter. . . When modifying a register, the modem also remembers the location of the last - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 7
supported by this modem. . . . . CHAPTER 2- BASICS OF CELLULAR PHONE USE . . . Connecting the Modem to a Cellular Phone . . The internal modem installed in the Armada 7000 supported by this modem. . N Cellular phone connection cable. (Contact your Compaq authorized reseller or service setup - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 8
drivers from Windows to . communicate with the modem. If you are using a communications application other than . Windows to initiate a DSVD call, refer to the software documentation for instructions on . . manually to exit. . . The command typed above has four parts: . 1) -SSE=1 enables DSVD - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 9
. . Using the Command Mode of Windows HyperTerminal . . N Starting with a Voice Connection . . From the Command Mode of Windows HyperTerminal, follow these instructions. . . To initiate a voice call: . 1. Type AT-SSE=1 then press Enter to enable DSVD operation. . The modem responds OK - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 10
sets FCLASS=0. . . . N Changing from a DSVD Connection to a Speakerphone Connection While in DSVD mode from Windows HyperTerminal: 1. Escape to Command Mode by typing Shift+++ then wait for OK. 2. Type AT+VNH=2;H then press Enter. The modem responds OK and is now in speakerphone mode. - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 11
Basic AT Commands . . . . Answer Command (A) . This command causes the modem to answer a call without waiting for a ring. This is useful . in manually answering a call or when making a direct connection with another modem. . When this command is entered, the modem will attempt to register - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 12
codes are in yymmdd format, and . the revision codes are 3-digit numbers. . . n = 9 . . Requests ROM revision and country code. For example, Compaq N.NN USA where N.NN defines the revision code for the ROM and reports the selected . DAA. . . Long Space Disconnect (Y) . . This command - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 13
register specific . . Recall Stored Profile (Z) . . . This command resets the modem, recalls the specified user profile from nonvolatile memory (NVRAM), executed command remains in the command . buffer until AT is entered or power is turned off. Both actions clear the buffer and make the . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 14
: 3 +,7( $3(5 (cont.) . . Parameters: none . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 15
0 Enables output of result codes (Default). . . n = 1 Disables return of result codes. . . Result Code Form (V) . . . This command determines the type of result code. The Vn command determines if the result code is sent as words or numbers. . . Parameters: 0, 1 . . n = 0 Result code is - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 16
: 3 +,7( $3(5 (cont.) . . n = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Result code is sent as words (Default). - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 17
: 3 +,7( $3(5 (cont.) NOTE: To turn off the speaker completely, use the M0 command. . . . Speaker Control (M) . . Parameters: 0, 1, 2, 3 . . n = 0 Always off. . . n = 1 On until carrier is detected (Default). . n = 2 Always on. . . n = 3 On after dialing; off when carrier - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 18
: 3 +,7( $3(5 (cont.) - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 19
: 3 +,7( $3(5 (cont.) . . . Data Set Ready (&S) . . This command selects how the modem will control data set ready (DSR). . Parameters: 0, 1, 2 . . . n = 0 DSR will remain on at all times (Default). . n = 1 . . DSR will become active after answer tone has been detected and inactive - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 20
also restores &Y0 command option. Use AT&W to store the active memory profile in nonvolatile random . access memory (NVRAM = 4 Xon/Xoff. . n = 5 Transparent Xon/Xoff (communications program . . support required). . . Make-to-Break Ratio (&P) . . This command specifies the make/break - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 21
. n = 1 Selects 33%-67% make/break ratio. . . Recall Profile on Power-Up (&Y) . . This command selects which stored profile will be made active after a the &J0 command is in effect, the modem automatically determines which type of . telephone interface is in use, then proceeds with the call - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 22
: 3 +,7( $3(5 (cont.) . . V.32/V.32 bis Auto Retrain Command (&B) . . This command controls the auto retrain option for V.32 and V.32bis. . This command does not effect V.22bis retrain, which is independently controlled with the . %E command. Actions taken by this command are independent of - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 23
: 3 +,7( $3(5 (cont.) . . Parameter: 0 - 127 (Default 13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 24
: 3 +,7( $3(5 (cont.) . . . V.22 bis Auto-Retrain Control (%E) . . . This command instructs the modem to monitor the line quality and request a retrain when necessary during a 2400-bps connection. . . Parameters: 0, 1 . . n = 0 Disables V.22bis auto-retrain. . . n = 1 Enables V.22bis - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 25
is received. This setting is useful in . calling a system for which the first character sent is . . . known and where several different types of modems are attached. . . Break Control (\K) . . . This command sets Break Control. This command controls the sequence of events when a break is - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 26
: 3 +,7( $3(5 (cont.) . . n = 5 Send break Same as n = Same as n = Same as n = . . . (Default to remote 4 ) with data 4 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 27
: 3 +,7( $3(5 (cont.) . . . DTE Flow Control (\Q) . . This command selects flow control between modem and the computer (DTE). . Parameters: 0, 1, 3, 9 . . . n = 0 Disable flow control. . n = 1 Enable Xon/Xoff flow control. . . n = 3 Enables bidirectional hardware flow control (CTS - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 28
: 3 +,7( $3(5 (cont.) . . n = 54 Enables V.42 LAPM and MNP error control with direct- . . mode fallback. . . Originate MNP Link (\O) . This command causes the modem to originate an MNP link from the online command state, . . . does not perform V.42 link negotiation, assumes that the - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 29
on all manufacturers' phone models. NOTE: This command is not supported on all manufacturers' phone models. NOTE: This command is not supported on all manufacturers' phone models. . . . Transmit Break to Remote Modem (\B) . . . This command sets the length of the transmitted break to the - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 30
. . n = 2 Nokia, Technophone, AT&T. . . n = 3 Not supported by this modem. . n = 4 GE or Ericsson. . . . . = maximum number of storable numbers; telephone specific . CAUTION: Numbers stored in the cellular of the cellular telephone, protocol type, . and active telephone numbers - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 31
AT+VDR=?) . This command queries the modem for the range of supported distinctive ring configurations. . The DCE returns (0,1), (0-255). . . is in operation . (phone mute feature). . . n = 7 Restores/attaches microphone along with speaker . (normal speakerphone operation). . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 32
: 3 +,7( $3(5 (cont.) - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 33
DTE under each configuration. For speakerphone, the configurations supported are 0, 5, 7. . . . Report Current the . OK result code. . . . Facsimile Commands . . . Read Current Service Class . AT+FCLASS? interrogates the modem to determine the active configuration. . . Parameters - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 34
: 3 +,7( $3(5 (cont.) . . . Read Service Class Capabilities . . . Interrogates the modem to determine its operating capabilities (excluding +FTS and +FRS commands). . . The responses are: . . +FCLASS=? 0, 1, 8, 80 . . +FTM=? 3, 24, 48, 72, 73, - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 35
code results if this command is issued while the modem is on-hook. . . . Service Class Selection . . AT+FCLASS= selects the class (kind) of service desired. . Parameters: 0, 1, 8, 80 . . . n = 0 Data mode (Default) . n = 1 Fax Class 1 . . n = 8 Voice mode . . n = 80 Enter - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 36
: 3 +,7( $3(5 (cont.) . . . Transmit HDLC Data . . . AT+FTH causes the modem to transmit data framed in HDLC protocol using the modulation defined below. . . Parameters: 3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 . . n = 3 V.21 channel 2 (300 n = 97 V.17 (9600 bps) Long Train - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 37
: 3 +,7( $3(5 (cont.) . . Start Modem Data Mode (-SDA) . . . This command initiates the transmission of the modem data mode start sequence and causes the DCE to switch to modem data mode. . . . Start Facsimile Data Mode (-SFX) . This command initiates the transmission of the fax data mode - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 38
: 3 +,7( $3(5 (cont.) - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 39
Mode (-SVV) . This command initiates the transmission of the VoiceView data. . . . . Accept Data Mode Request (-SAC) . This command instructs the modem to accept the incoming VoiceView data mode start . sequence and proceed with establishing a data transaction. . . . Start Capabilities - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 40
: 3 +,7( $3(5 (cont.) . . . . CHAPTER 5- S REGISTERS . . . S Registers Summary . . . . Ring to Answer On (S0) . This register sets the number of rings required before the modem automatically answers a . call. Setting this register to zero disables auto-answer mode. . . . Range: - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 41
register sets the time, in tenths of a second, that the carrier must be present before the . modem considers it valid and turns on carrier detect (CD) if applicable. . . Range: 1-255 tenths of a second . . (Default): 6 (0.6 second) . . . . . . . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 42
a change in DTR shorter than the S25 time is ignored. If &D3 is selected, . . any on-to-off transition of DTR causes a hard reset. . . Range: 0-255 . . (Default): 5 (50 milliseconds) . . Disconnect Inactivity Timer (S30) . . . This register sets the length of time, in minutes, that the - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 43
: 3 +,7( $3(5 (cont.) NOTE: Maximum DTE speed supported by this modem is 115,200 bps. . . (Default): 0 (disable) . . . Negotiation Failure (S36) . This register determines the action to be taken when V.42 feature negotiation fails - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 44
: 3 +,7( $3(5 (cont.) . . Delay Before Forced Modem Hang-Up . (S38) . . This register specifies the delay between the modem's receipt of the H command disconnect . (or ON-to-OFF transition of DTR if the modem is programmed to follow the signal), and the . disconnect operation. . . The - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 45
: 3 +,7( $3(5 (cont.) NOTE: S49 should always be lower than the value stored in S50. . . 3 = 300 bps 13 = 19200 bps . . 4 = Reserved 14 = 21600 bps . . 5 = 1200 bps 15 = 24000 bps . 6 = . 2400 bps 16 = 26400 bps . 7 = 4800 bps 17 = 28800 bps . . 8 = 7200 bps 18 = - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 46
: 3 +,7( $3(5 (cont.) . . Range: 2-255 . . (Default): 16 . . The value set in S50 should always be greater than the value stored in S49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 47
: 3 +,7( $3(5 (cont.) . . . V.34 Transmit Rate Selection (S51) . . . This register enables/disables the V.34 transmitter optional symbol rate/carrier frequency control. If bits 0 and 1 are selected, automatic frequency selection is enabled. If bits 0 and 1 . are set to 0, the low carrier - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 48
for connections with V.34 modems. The actual transmit speed negotiated is the highest of the selected speeds that both modems can . support under current line conditions. The speeds selected in this register will be attempted . first. . . . (Default): 63 . Bit 0 = 21600 bps . . Bit - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 49
Break Control (S82) . This register provides a way for the user to get the attention of the remote modem. The break . type depends on the specific application. LAPM specifies three methods of break signal . . . handling: in sequence, expedited, and destructive. If an invalid number is entered - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 50
amount of time, in seconds, the modem can be idle before it goes into Suspend (low power) mode. . . Range: 0, 5-255 . . (Default): 10 . . . You the modem will never go into suspend, and will end when a character is typed or a ring signal is detected. . . . V.42 bis Maximum String Length - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 51
back to a V.22 1200 bps connection if the link is . determined to be incapable of supporting a higher . data rate (Default). . . Bit 1 = Landline like cellular. Instructs the modem to enable . cellular network compensations. These compensations . are automatically enabled when directly - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 52
: 3 +,7( $3(5 (cont.) - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 53
: 3 +,7( $3(5 (cont.) . . . V.42 bis Compression Control (S101) . . . This register enables or disables V.42bis if the setting of register S46 permits data compression. The default for S101 is 35. . . Bits 1/0 V.42bis compression options; . 00 disable V.42bis compression. . . 01 - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 54
to be used in connections with other high-speed modems. The actual speed negotiated is the highest speed that both modems can support under current line conditions. . This register does not affect connections at DCE speeds below 4800 bps. . . Bit 0 Reserved . . Bit 1 4800 bps . . Bit - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 55
supported on all manufacturers' phone models. NOTE: The value returned is a relative signal strength. The range may vary from phone to phone. NOTE: If any bit = 1, corresponding status is active. . . Cellular S Registers . . . Battery phone locked . . 3 No service . . 4 Roam . 5 - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 56
: 3 +,7( $3(5 (cont.) NOTE: This modem supports credit card dialing for Sprint, AT&T, and MCI carriers. . . . . CHAPTER and MCI . ATDT XXXXXXXXXXX & XXXXXXXXXXX & XXXX for Sprint . . The first & instructs the modem to wait until the credit card dialing tone is received. The . second & - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 57
. . The telephone number is dialed immediately upon dial tone detection. This may be helpful . . . when dialing through a PBX or for some long distance services. The maximum wait period is set in register S7. . . . Wait for Quiet Answer Command (@) . The modem will wait for at least 210 - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 58
: 3 +,7( $3(5 (cont.) . . . . CHAPTER 7- HEXADECIMAL TO ASCII CONVERSION TABLE . . Decimal Hex ASCII . . 00 00 NUL (Null) . . 01 01 SOH (Start of heading) . 02 02 STX (Start of text) . . 03 03 ETX (End of text) . 04 04 EOT (End of transmission) . . 05 05 ENQ ( - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 59
: 3 +,7( $3(5 (cont.) . . 35 . . 36 . . 37 . 38 . . 39 . 40 . . 41 . . 42 . 43 . . 44 . 45 . . 46 . 47 . . 48 . . 49 . 50 . . 51 . 52 . . 53 . . 54 . 55 . . 56 . 57 . . 58 . . 59 . 60 . . 61 . 62 . . 63 . . 64 . 65 . . 66 . - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 60
: 3 +,7( $3(5 (cont.) . . 73 49 I . . 74 4A J . . 75 4B K . 76 4C L . . 77 4D M . 78 4E N . . 79 4F O . . 80 50 P . 81 51 Q . . 82 52 R . 83 53 S . . 84 54 T . 85 55 U . . 86 56 V . . 87 57 W . 88 58 X . . 89 59 Y . 90 5A - Compaq Armada 7700 | 33.6Kbps Modem Commands for Armada 7000 Family of Personal - Page 61
: 3 +,7( $3(5 (cont.) . . 111 6F . . 112 70 . . 113 71 . 114 72 . . 115 73 . 116 74 . . 117 75 . . 118 76 . 119 77 . . 120 78 . 121 79 . . 122 7A . 123 7B . . 124 7C . . 125 7D . 126 7E . . 127 7F . . . . . . . . . . . . . . .
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October 1997
Prepared By
Portables Division
Compaq
Computer
Corporation
C
ONTENTS
chapter 1
Using Modem
Commands
..............
3
chapter 2
Basics of
Cellular Phone
Use
..........................
7
chapter 3
Basics of Digital
Simultaneous
Voice and Data
(DSVD)
.....................
8
chapter 4
AT Commands
.......
11
chapter 5
S Registers
.............
33
chapter 6
Dial Modifiers
.........
47
chapter 7
Hexadecimal to
ASCII
Conversion
Table
.....................
49
M
ODEM
C
OMMANDS
A
RMADA
7000 F
AMILY
OF
P
ERSONAL
C
OMPUTER
S