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Compaq Armada 7300 Command Manual

Modem commands
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October 1997
Prepared By
Portables Division
Compaq
Computer
Corporation
C
O N T E N T S
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
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OMMANDS
7000 F
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AMILY
OMPUTERS

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Summary of Contents for Compaq Armada 7300

  • Page 1 October 1997 Prepared By Portables Division Compaq Computer Corporation O N T E N T S chapter 1 Using Modem Commands ... 3 chapter 2 Basics of Cellular Phone Use ... 7 chapter 3 Basics of Digital Simultaneous Voice and Data (DSVD) ...
  • Page 2 (cont.) +,7( $3(5 OTICE The information in this document is subject to change without notice. COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

  • Page 3: Entering A Command

    CHAPTER 1— U Entering a Command Use the following guidelines when issuing modem commands: The modem ignores all characters that precede AT. A maximum of 255 characters can follow the AT command. The modem doesn't count the AT prefix or carriage return (<cr>) character.

  • Page 4: Creating A Command Mode Shortcut

    V0 for numeric characters. Numeric characters are followed by a carriage return. Using Online Mode In the online mode, the transmitting modem receives characters from the computer, converts the data to analog signals then transmits these signals over the telephone line. The process of altering a signal for transmission is called modulation.

  • Page 5: Creating A Command Mode Icon

    Creating a Command Mode Icon To create a command mode icon using HyperTerminal: NOTE: The internal modem uses the COM2 port in the system. NOTE: To hang up the modem, type ATH0 and press Enter. Setting S Register Default Values The S register default values function reliably under most circumstances.

  • Page 6: Reading An S Register

    (cont.) +,7( $3(5 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 inquiry. For example, the following sequence of commands display the contents of the S11 register.
  • Page 7 CHAPTER 2— B Connecting the Modem to a Cellular Phone The internal modem installed in the Armada 7000 Family of Personal Computers allows you to connect a cellular phone in North America to your computer using an optional cable and the 25- pin connector on the computer.
  • Page 8 (cont.) +,7( $3(5 CHAPTER 3— B ASICS OF (DSVD) Digital Simultaneous Voice and Data Using AT Commands The internal modem is equipped for digital simultaneous voice and data (DSVD) connections with other DSVD compatible modems, as well as for voice-only and data-only calls. Using DSVD technology, and the computer’s speakerphone capability, a voice call can be added during a data transfer, or computer information can be sent during a voice conversation, all over a single phone line.
  • Page 9 Using the Command Mode of Windows HyperTerminal NOTE: Start==>Programs==>Accessor ies==>HyperTerminal. NOTE: When -SSE=1 and speakerphone are active, the D command causes an automatic change from +FCLASS=8 to +FCLASS=0. NOTE: When -SSE=1 and speakerphone are active, the D command causes an automatic change from +FCLASS=8 to +FCLASS=0.
  • Page 10 NOTE: The H command automatically sets FCLASS=0. (cont.) +,7( $3(5 Changing from a DSVD Connection to a Speakerphone Connection While in DSVD mode from Windows HyperTerminal: Escape to Command Mode by typing Shift+++ then wait for OK. Type AT+VNH=2;H then press Enter. The modem responds OK and is now in speakerphone mode.

  • Page 11: Basic At Commands

    CHAPTER 4— AT C Basic AT Commands Answer Command (A) NOTE: Any command that follows the A command on the same command line is ignored. Attention Code (AT) Bell/ITU Mode Selection (B) Character Echo (E) (cont.) +,7( $3(5 OMMANDS 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.
  • Page 12 Determine Data Rate Negotiation (N) NOTE: In pulse dialing, characters A, B, Dial Command (D) C, D, and # are ignored. Identification/Checksum Option (I) Long Space Disconnect (Y) (cont.) +,7( $3(5 This command determines if the modem performs rate negotiated handshake with remote modem at connection Parameters: 0, 1 n = 0...
  • Page 13 (cont.) +,7( $3(5 Negotiation Progress Result Code (W) This command determines whether or not to return negotiation progress result codes. Parameters: 0, 1, 2 n = 0 DTE speed on CONNECT; CARRIER and PROTOCOL disabled (Default). n = 1 DTE speed on CONNECT; CARRIER and PROTOCOL enabled.
  • Page 14 (cont.) +,7( $3(5 Parameters: none...
  • Page 15 (cont.) +,7( $3(5 Result Code (X) This command selects the result code set and dialing functions. Parameters: 0, 1, 2, 3, 4, 9 n = 0 Basic result code set (codes 0-4). The modem waits for the period set in register S6 and blind dials.
  • Page 16 (cont.) +,7( $3(5 n = 1 Result code is sent as words (Default).
  • Page 17 Speaker Control (M) Speaker Volume (L) NOTE: To turn off the speaker completely, use the M0 command. Switch Hook Control (H) Tone Dial (T) Ampersand AT& Commands Data Carrier Detect (&C) (cont.) +,7( $3(5 Parameters: 0, 1, 2, 3 n = 0 Always off.
  • Page 18 (cont.) +,7( $3(5...
  • Page 19 (cont.) +,7( $3(5 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 at hang-up.
  • Page 20 (cont.) +,7( $3(5 Guard Tone (&G) This command determines guard tone selection. Parameters: 0, 2 n = 0 Disables guard tone (Default). n = 2 1800-Hz guard tone. Load ROM Defaults and ETC (&F) This command loads the preset factory configuration from firmware ROM into active memory and enables Enhanced Throughput Cellular (ETC).
  • Page 21 Recall Profile on Power-Up (&Y) Store Active Profile (&W) Store Telephone Number (&Z) NOTE: The &Zn command must not be followed by another command on the same command line. Telephone Interface Control (&J) (cont.) +,7( $3(5 Parameters: 0, 1 n = 0 Selects 39%-61% make/break ratio (Default).
  • Page 22 (cont.) +,7( $3(5 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 automatic rate renegotiation because of protocol errors, which are controlled by S110.
  • Page 23 (cont.) +,7( $3(5 Parameter: 0 - 127 (Default 13)
  • Page 24 (cont.) +,7( $3(5 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 auto-retrain (Default).
  • Page 25 (cont.) +,7( $3(5 Auto-Reliable Buffer Control (\C) This command controls the auto-reliable buffer operation. This feature can be used to reduce connect time to systems using non-error control modems. Parameters: 0, 1, 2 n = 0 Does not buffer data during error-control negotiation (Default).
  • Page 26 (cont.) +,7( $3(5 n = 5 Send break to remote (Default with data Same as n = Same as n = Same as n =...
  • Page 27 (cont.) +,7( $3(5 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 and RTS are utilized) (Default).
  • Page 28 (cont.) +,7( $3(5 n = 54 Enables V.42 LAPM and MNP error control with direct- mode fallback. Originate MNP Link (\O) This command causes the modem to originate an MNP link from the online command state, does not perform V.42 link negotiation, assumes that the remote modem is executing a \U command, and responds with an error message if an error-control link is already active.
  • Page 29 Transmit Break to Remote Modem (\B) Cellular AT Commands Cellular Telephone Lock Command ($L) NOTE: This command not supported on all manufacturers' phone models. Cellular Telephone Unlock Command ($U) NOTE: This command is not supported on all manufacturers' phone models. Display Cellular Timer ($T) NOTE: This command is not supported...
  • Page 30 Display Stored Dial String Option ($Zn?) Manufacturer Model ($M) Set Cellular $S Register ($Sr=n) Store Dial String S ($Zn=S) Telephone Information Command ($I) NOTE: Report of Active Telephone Number may be replaced by the phrase Phone Ready on some manufacturers' models. (cont.) +,7( $3(5...
  • Page 31 Telephony Commands Enter Voice Mode (AT+FCLASS=8) Initialize Voice Parameters (AT+VIP) Distinctive Ringing and Cadence Report (AT+VDR=<enable>,<report>) NOTE: Distinctive ringing is not available in some countries. Return Distinctive Ringing and Cadence NOTE: Report (AT+VDR?) Distinctive ringing is not available in some countries. Return Supported Distinctive Ringing and Cadence Report Configurations NOTE:...
  • Page 32 (cont.) +,7( $3(5...
  • Page 33 Report Current Analog Source/Destination NOTE: (AT+VLS?) AT+VLS=? queries the modem for the range of supported configurations and the list of unsolicited event codes that the modem reports to the DTE under Speakerphone Volume Control (AT+VGT) each configuration. For speakerphone, the configurations supported are 0, 5, 7.
  • Page 34 (cont.) +,7( $3(5 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, 74, 96, 97, 98, 121, 122, 145, 146 +FRM=? 3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 +FTH=?
  • Page 35 (cont.) +,7( $3(5 n = 74 V.29 (9600 bps) Long Train n = 96 V.29 (9600 bps) An ERROR response 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)
  • Page 36 (cont.) +,7( $3(5 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 bps) n = 24 V.27ter (2400 bps)
  • Page 37 (cont.) +,7( $3(5 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 start sequence and causes the DCE to switch to fax data mode.
  • Page 38 (cont.) +,7( $3(5...
  • Page 39 (cont.) +,7( $3(5 Start Sequence Response Control (-SSR=n) This command enables or disables a response to all VoiceView data start sequences. Parameters: 0, 1 n = 0 Disable response. n = 1 Enable response (Default). Start VoiceView Data Mode (-SVV) This command initiates the transmission of the VoiceView data.
  • Page 40 (cont.) +,7( $3(5 CHAPTER 5— S R EGISTERS 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: 0-255 rings 0 (disable) (Default):...
  • Page 41 (cont.) +,7( $3(5 Backspace Character (S5) This register sets the character recognized as a backspace. The modem will not recognize the backspace character if it is set to a value that is greater than 32 and less than 127. This character can be used to edit a command line.
  • Page 42 (cont.) +,7( $3(5 Lost Carrier to Hang-Up Delay (S10) This register sets the length of time, in tenths of a second, that the modem waits before hanging up after a loss of carrier. This allows for a temporary carrier loss without causing the local modem to disconnect.
  • Page 43 Negotiation Failure (S36) Desired Carrier Speed (S37) NOTE: Maximum DTE speed supported by this modem is 115,200 bps. (cont.) +,7( $3(5 0 (disable) (Default): This register determines the action to be taken when V.42 feature negotiation fails or is not selected.
  • Page 44 (cont.) +,7( $3(5 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 modem will wait for the number of seconds specified in S38 for the remote modem to acknowledge all data in the modem buffer before disconnecting.
  • Page 45 Data Compression Control (S46) Reports Compression in Use (S47) V.42 Feature Negotiation Control (S48) Specifies Data Buffer Lower Limit (S49) NOTE: S49 should always be lower than the value stored in S50. Specifies Data Buffer Upper Limit (S50) (cont.) +,7( $3(5 300 bps Reserved...
  • Page 46 (cont.) +,7( $3(5 Range: 2-255 (Default): The value set in S50 should always be greater than the value stored in S49.
  • Page 47 (cont.) +,7( $3(5 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 frequency is selected. (Default): Bit 0 = Select high carrier frequency...
  • Page 48 (cont.) +,7( $3(5 V.34 Low Speed Transmit Rate Selection (S53) This register allows the bit rates of V.34 to be independently enabled and disabled. To turn off V.34, set S53 and S54 to 0. (Default): Bit 0 = 2400 bps Bit 1 = 4800 bps Bit 2 =...
  • Page 49 (cont.) +,7( $3(5 Bit 6 = Reserved Bit 7 = Reserved Link Layer Window Size (S69) This register sets the number of outstanding unacknowledged packets. Allowing a larger number of outstanding packets may increase throughput on good quality communications channels. Allowing a smaller number of outstanding packets may increase throughput on poor quality communications channels such as cellular channels.
  • Page 50 (cont.) +,7( $3(5 Call Failure Reason Code (S86) When the modem issues a NO CARRIER result code if a value is written to S86 to help determine the reason for the failed connection. S86 records the first event that contributed to a NO CARRIER message.
  • Page 51 Result Code Message Control (S95) ETC Control Selection (S96) NOTE: To turn off the /ETC CONNECT message, set S96=15 if &F5 or &F15 is in the initialization string. Set S96=13 if &F6 or &F16 is in the initialization string. Flash Hook Time (S100) (cont.) +,7( $3(5...
  • Page 52 (cont.) +,7( $3(5...
  • Page 53 (cont.) +,7( $3(5 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 Bits Bits Selective Reject (SREJ) Command (S105) This register allows the implementation of the selective reject frame. When enabled, this allows error-control modems to request a retransmission of a single data frame during both MNP and LAPM connections.
  • Page 54 (cont.) +,7( $3(5 Signal Quality Selection (S108) This register selects the level of the EQM at which actions specified in the &B command will be taken, as conditions worsen. Range: 0-3 No limit. When using this setting, loss of data may occur and loss of carrier will not cause a V.32 or V.32bis call to be dropped.
  • Page 55 Cellular S Registers NOTE: Battery Level ($S8) This $S8 register is not supported on all manufacturers' phone models. Cellular Signal Strength ($S1) NOTE: The value returned is a relative signal strength. The range may vary from phone to phone. Cellular Signal Strength Threshold ($S2) Cellular Status Request ($S0) NOTE: If any bit = 1, corresponding...
  • Page 56 CHAPTER 6— D Dial Modifiers Summary Credit Card Dialing (&) NOTE: This modem supports credit card dialing for Sprint, AT&T, and MCI carriers. Dial Digits Characters (0-9, A-D, #, *) Dial Stored Number (S) Dial Stored Number in Cellular Phone ($S) Flash Hook Command (!) Force V.22 for One Call Only (J) Format Dial String [( ), - , <space>]...
  • Page 57 (cont.) +,7( $3(5 Pause Command (,) This command causes the modem to pause for a specified time during dialing. The duration is set by register S8. Pulse Dial (P) This command sets the dialing mode to pulse. All calls will remain pulse until tone dialing is selected.
  • Page 58 (cont.) +,7( $3(5 CHAPTER 7— H EXADECIMAL TO Decimal ASCII C ONVERSION ABLE ASCII NUL (Null) SOH (Start of heading) STX (Start of text) ETX (End of text) EOT (End of transmission) ENQ (Enquiry) ACK (Acknowledge) BEL (Bell) BS (Backspace) HT (Horizontal tab) LF (Linefeed) VT (Vertical tab)
  • Page 59 (cont.) +,7( $3(5 & < >...
  • Page 60 (cont.) +,7( $3(5...
  • Page 61 (cont.) +,7( $3(5 DEL (Delete)

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