The following features are provided on all models:
Supports Lithium Ion (Li-ion) and Nickel Metal Hydride (NiMH) modular battery packs SoundBlaster-compatible audio controller with internal stereo speakers and internal microphone Full-size 101 key compatible keyboard including 12 function keys, 8 cursor control keys, inverted-T cursor control keys and embedded numeric keypad Four user-programmable keys Touchpad pointing device Operates from an internal battery pack, plus an optional battery pack in the Dualbay, or integrated AC power that is compatible with domestic and international power sources Power management and security features
Infrared interface for wireless communications with other IrDA-compliant devices at data rates up to 4 MB/sec 176 pin expansion connector provides the interface to the Convenience Base options Rear-panel ports provide connections for parallel and serial, external monitor, keyboard/mouse and IrDA compliant infrared devices

1.3 Software Fulfillment

Replacement software may be ordered directly from Compaq Computer Corporation. Both the model and the serial number of the computer are needed to identify the specific software available.
1.4 External Computer Components
The following information provides new mechanical changes to the models, which are different from earlier models

Universal Serial Bus

A Universal Serial Bus (USB) connector has been added to select models on the left side of the computer. The connector provides an interface for USB peripheral devices. On models without the USB connector, a plastic insert covers the connector space. The plastic USB cover is included in spare part 254981-001, the miscellaneous spare parts kit. The kit also ships with such items as replacement clutch covers, rubber feet, battery spacer door, etc. (See Chapter 4 in the Maintenance and Service Guide for miscellaneous spare parts.)

Battery Spacer Door

IMPORTANT: The Battery Spacer Door, which is a component of the Dualbay compartment, has been modified. The new battery spacer door pushes 1pushes inward with a single motion, as compared to the previous version 2 which pulled out and pushed inward ( Figure 1-1). NOTE: The Battery Spacer Door is included in the miscellaneous spare parts kit (spare part 254981-001).
Figure 1-1. New Battery Spacer Door
Illustrated Parts for the Computer
4.0 Illustrated Parts for the Computer
For an illustrated parts breakdown, refer to the Illustrated Parts Map. The following information provides new spare parts descriptions and part numbers.
The following tables are updated to include the new spare parts. For illustrations of spare parts, refer to the Maintenance and Service Guide, Compaq Armada 1500 Personal Computers or Illustrated Parts Map.

1510, 1510DM, 1520, 1520D, 1520DM 1550T, 1550DMT, 1580DT, 1580DMT, 1585DMT 1530, 1530D, 1530DM, 1535DM, 1540D, 1540DM, 1560, 1560D, 1560DM 1590DT, 1590DMT, 1592DT,1592DMT All models All models (except MMX models) All MMX models except as noted below Armada 1592 All models 1510, 1510DM 1520, 1520D, 1520DM, 1550T, 1550DMT 1530, 1530D, 1530DM, 1535DM 1580DT, 1580DMT, 1585DMT 1540D, 1540DM 1560, 1560D, 1560DM 1590DT, 1590DMT 1592DT, 1592DMT
254958-001 255049-001 255189-001
12.1 inch TFT display LED board
255190-001 254956-001 254976-001 255161-001 255262-001 254957-001 254949-001 255010-001 255129-001 255071-001 255187-001 255310-001 255188-001 255246-001
I/O Fixture Connector DC/DC Converter Board
DC/DC Converter Board, 2.5 / 2.45 / 2.9v DC/DC Converter Board, 1.8v
Audio Board System CPU Board
120-MHz processor 133-MHz processor 133-MHz processor with MMX 150-MHz processor 150-MHz processor with MMX 166-MHz processor with MMX 166-MHz processor with MMX 233-MHz MMX processor

Table 4-5 Options

Description Power Cord
US/Canada/Latin America/Brazil Australia/New Zealand Denmark Europe Italy Japan Korea Switzerland UK/Singapore

Models

All models All models All models All models All models All models All models All models All models All models All models All models All models
246959-001 246959-011 246959-081 246959-021 246959-061 246959-291 246959-AD1 246959-AG1 246959-031 218079-001 254959-001 254960-001 950970-001
Automobile Adapter Battery Packs

Battery Charger

Table 4-6 Miscellaneous Parts
Description Miscellaneous Plastics Kit, includes: Left clutch cover Microphone/display cable cover Right clutch cover Battery spacer door CD-ROM access door Modem access door Rubber feet Display Logos Hinge and Latch Kit, includes:
Display clutch retaining plate (2 each) Display clutch (2 each) Display latch (2 each) Display latch spring (2 each) Rubber screw covers (4 each)

All models

254981-001
All models with integrated CD-ROM drives

All models All models

255013-001 254982-001
Miscellaneous Screw Kit, includes
T-8, long (50 each) T-8, short (10 each) T-8, with Ny-Loc (4 each) 7mm (10 each) 5 mm (10 each)

254980-001

Miscellaneous Plastics Kit Maintenance and Service Guide Illustrated Parts Map Armada 1500 Software CD Quick Restore Software CD for model 1535DM Quick Restore Software CD for model 1585DMT
All models All models All models All models All models All models
254981-001 255011-001 255012-001 255097-001 255180-001 255181-001

Table 4-7 Accessories

Models All models All models All models All models All models All models All models All models All models All models
246959-001 246959-011 246959-081 246959-021 246959-061 246959-291 246959-AD1 246959-AG1 246959-031 218079-001 254959-001 254960-001 950970-001 254988-001 254987-001 254989-001 254990-001 225436-001
Convenience Bases Convenience Base Pass-Through model Convenience Base Ethernet model with 10BaseT Convenience Base BNC model with 10BaseT Monitor Stand 100BaseT Ethernet Upgrade
33.6 Data/Fax Modem with install diskette 1510DM, 1520DM, 1530DM, 1535DM, 1540DM, 1550DMT, 1580DMT, 1585DMT, 1590DMT 1560DM, 1592DMT

North America

255014-001

255014-191

255014-371 255245-001
56K Voice / Fax / Data Modem (controllerless, integrated) Modem Cable (RJ11)
All models All models All models All models All models All models All models All models All models All models
165224-001 255135-001 255135-011 255135-081 255135-021 255135-061 255135-291 255135-AD1 255135-031 255135-111
10 AC Power Cord Extension
US Australia Denmark Europe Italy Japan Korea UK Singapore

Option Spares

Table 4-8 Accessories
Description Memory Expansion Board

8MB 16MB 32MB 64MB

All models All models All models All models All models All models All models All models
272108-001 272110-001 220583-001 273158-001 254974-001 255215-001 255245-001 255014-001

CD-ROM Drive

10X CD-ROM Drive 20X Max CD-ROM Drive 56K Voice/Fax/Data Modem (Controllerless, Integrated) 33.6 Data/Fax Modem (Integrated)

9.0 Specifications

This chapter provides specifications on the following new components:
2.1-GB Hard Drive 3.2-GB Hard Drive 20X Max CD-ROM 12.1-inch TFT, SVGA display

Table 9-1 Hard Drives

Standard Model Configurations
Formatted Capacity Per Drive (MB) Physical Logical Drive Type Drive Height With drive frame (mm) Drive Size Inches Millimeters Transfer Rate Media (Mb/s) Interface (Mb/s) Sector Interleave Typical Seek Time (including setting) Single Track (ms) Average (ms) Full Stroke (ms) Disk Rotational Speed Physical Configuration Cylinders Data Heads Sectors per Track Bytes per Sector Logical Configuration Cylinders Data Heads Sectors per Track Bytes per Sector Buffer Size 110-144-23 4,4,000 38.1 to 54.8 16.6 1:1 51.7 to 83.4 33.3 1:1 3.94 x 2.75 100.2 x 69.85 4.01 x 2.x 69.85 12.7mm 12.7mm 2.16 2.3.24 3.2 65

2.1-GB

3.2-GB
Table 9-2 20X Max CD-ROM Drive
Applicable Disc CD-ROM mode 1, mode 2 CD-Digital Audio CD-XA mode 2 (Form 1, Form 2) CD-I mode 2 (Form 1, Form 2) CD-I Ready CD-Bridge CD-WO (fixed / variable packets) Photo CD (single / multi-session) Center Hole Diameter Disc Diameter Disc Thickness Track Pitch Laser Beam Divergence Output Power Type Wave Length Access Time Random Full Stroke Audio Output Level Line Out Headphone Cache Buffer Data Transfer Rate Sustained, quad Sustained, single Burst Startup Time Capacity Mode 1, 12 cm Mode 2, 12 cm 8 cm 550 MB 640 MB 180 MB 300 MB/sec 150 KB/sec 8.3 MB/sec < 10 seconds typical 0.7 Vrms None 256 KB < 150 ms < 600 ms 53.5 + 1.5 degrees 0.13 + 0.1 mw Semiconductor Laser GaA1As 780 nm + 25 nm 15mm 12cm, 8cm 1.2mm 1.6 m
Table 9-3 12.1-inch TFT, SVGA Display
Dimensions Height Width Number of Colors Contrast Ration Pixel Resolution Pitch Format Configuration Backlight 0.30 x 0.30 mm 800 x 600 RGB Stripe 130 cd/m

Metric

184 mm 245 mm 16 million Over 100:1 0.30 x 0.30 mm 800 x 600 RGB Stripe 130 cd/m2
7.24 in. 9.7 in. 16 million Over 100:1

Appendix C

Modem Commands
This section includes modem commands for the 56Kbps internal modem. The telephony modem is designed to operate with the preinstalled software in the computer. The modem is compatible with Microsoft Windows 95 (and later) or Windows NT 4.0.

Table C-1 Modem Commands

Command A Bn Description Answer Command. A instructs the modem to go off-hook and answer an incoming call. Communication Standard Setting. Bn determines CCIT vs. Bell standard. 0: 1: 2: 3: Selects CCITT V.22 mode when the modem is at 1200bits/s Selects Bell 212A when the modem is at 1200bits/s (default). Unselects V23 reverse channel (same as B3). Unselects V23 reverse channel (same as B2).
15: Selects V.21 when the modem is at 300 bits/s 16: Selects Bell 103J when the modem isat 300 bits/s (default). Result Codes: OK Cn n=0, 1, 15, 16 ERROR Otherwise Carrier Control. The modem will accept the C1 command without error in order to assure backward compatibility with communications software that issues the C1 command. However, this modem does not support the C0 command. The C0 command may instruct some earlier modems (such as the Smartmodem 1200) to not send carrier (ie., it puts them in a receive-only mode). 0: 1: OK Transmit carrier always off. Normal transmit carrier switching. n=1 Continued

Result Codes: ERROR Otherwise
Table C-1, Modem Commands, Continued
Command Dn Description Dial Command. Dn instructs the modem to begin the dialing sequence. The dial string (n, including modifiers and the telephone number) is entered after the ATD command. A dial string can be up to 40 characters long. Any digit or symbol (09, *, #, A, B, C, D) may be dialed as touch tone digits. Characters such as spaces, hyphens, and parentheses do not countthey are ignored by the modem and may be included in the dial string to enhance readability. The following may be used as dial string modifiers: L P T V , W Redials last number. Should be the first character following TD, ignored otherwise. Pulse dialing Touch-tone dialing (default). The modem switches to speakerphone mode and dials the number. An ATH command may be used to disconnect the voice call. Pause during dialing. Pause for time specified in Register S8 before processing the next character in the dial string. Wait for dial tome. Modem waits for a second dial tone before processing the dial string.
@ Wait for quiet answer. Wait for five seconds of silence after dialing the number. If silence is not detected, the modem sends a NO ANSWER result code back to the user. ! ; ^ Hook flash. Causes the modem to go on-hook for 0.5 seconds and then return to offhook. Return to command mode. Causes the modem to return to command mode after dialing the number, without disconnecting the call. Disable data calling tone transmission. Letters (DTMF tone dialing mode only) S=n Dial a telephone number previously stored using the &Zn=x command (see the &Zn=x command for further information). The range of n is 03. $ Bong tone detection.

A, B, C, D

The dial modifiers listed above (except S) shall be saved when dial strings are stored. The T and P modifiers are allowed anywhere in the dial string so signaling methods may be changed after some digits are already sent. En Echo Command. En controls whether or not the characters entered from your computer keyboard are echoed back to your monitor while the modem is in command mode. 0: Disables echo to the computer. 1: Enables echo to the computer (default). Result Codes: OK Fn n=0, 1 ERROR Otherwise Online Echo Control. Fn determines if the modem will echo data from the DTE. This modem does not support the F0 version of the command. However, the modem will accept F1, which may be issued by older communication software, to assure backward compatibility. 0: 1: OK Online data character echo enabled (NOT SUPPORTED, ERROR). Online character echo disabled. n=1 Continued
Command Hn Description Hook Control. Note that in some countries H1 will be limited by a timer (i.e., the maximum time off-hook without a carrier negotiation). In those cases, S7 or a hardcoded constant will be used for the upper limit of this timer. 0: 1: OK In Modem goes on-hook (default). Modem goes off-hook. n=0, 1

Result Codes: ERROR Otherwise Request ID Information. In desplays specific product information about the modem. 0: 1: Returns default speed and controller firmware version, same as I3. Calculates ROM checksum and displays it on the DTE (ie. F15D).
2: Performs a ROM check and calculates and verifies the checksum displaying OK or ERROR. 3: 4: Returns the default speed and the controller firmware version, same as I0. Returns firmware version for data pump (ie. 57).
5: Returns the board ID: software version, hardware version, and country ID. Birdie Code Default Country Country Country ID Configuration Support Code(zz) String (ccc) -001 North America 19 NA -002 -003 Japan APD JPN SNG
9: Returns 2 or 3 character country ID string and 1 to 2 character version of country parameter table. (ie. ccc Ver. v). Ln Monitor Speaker Volume. Ln sets the speaker volume to low, medium, or high. 0: 1: 2: 3: Mn Selects low volume. Selects low volume. Selects medium volume (default). Selects high volume.
Monitor Speaker Mode. Mn turns the speaker on or off. 0: The speaker is off 1: The speaker is on until the modem detects the carrier signal (default) 2: The speaker is always on when modem is off-hook. 3: The speaker is on until the carrier is detected, except while dialing.
Modulation Handshake. Nn controls whether or not the local modem performs a negotiated handshake at connection time with the remote modem when the communication speed of the two modems is different. The N command affects the initial physical layer connection only. It does not affect subsequent speed changes made by V.32bis or MNP class 10 operation. 0: 1: When originating or answering, this is for handshake only at the communication standard specified by S37 and the ATB command. When originating or answering, begin the handshake only at the communication standard specified by S37 and the ATB command. During handshake, fallback to a lower speed may occur (default). Continued
Command On Description Return On-line to Data Mode. 0: If the modem is in the on-line command state, the O0 command causes it to go to the on-line state of the previously established connection. If the modem is off hook in the idle (off-line command) state, then the O0 command causes it to go to the handshaking state. Originate or answer mode is determined from the last D or A command, or R dial modifier that was selected. If the modem is on hook in the idle state, or if the modem is a test state, then the ERROR result code is returned, and no action is taken. 1: If the modem is in the on-line command state, the O1 command causes it to go to the on-line state of the previously established connection, and retrain its adaptive equalizer (if applicable). If the modem is off hook in the idle (off-line command) state, then the O1 command causes it to go to the handshaking state. Originate or answer mode is determined from the last D or A command, or R dial modifier that was selected. If the modem is on hook in the idle state, or if the modem is a test state, then the ERROR result code is returned, and no action is taken 3: If the modem is in the on-line command state, the O3 command causes it to go to the on-line state of the previously established connection, and issue a rate re negotiation sequence (if applicable). If the modem is off hook in the idle (off-line command) state, then the O3 command causes it to go to the handshaking state. Originate or answer mode is determined from the last D or A command, or R dial modifier that was selected. If the modem is on hook in the idle state, or if the modem is a test state, then the ERROR result code is returned, and no action is taken Also note that as the O command returns the modem to the online state, the protocol, compression, and connect message (as enabled by the W command and S95) will be displayed as if the connection was just being made. P Qn Select Pulse Dialing. P will apply to all subsequent D commands, until altered by the T command or the T dial modifier. Note that P is both a command and a dial modifier. Result Code Control. Result codes are informational messages sent from the modem and displayed on your monitor. Basic result codes are OK, CONNECT, RING, NO CARRIER, and ERROR. The ATQ command allows the user to turn result codes on or off. 0: Enables modem ot send result codes to the computer (default). 1: Disables modem from sending result codes to the computer. Sr Select S-register r. Sr is the command to query or write to the selected register. Sr=n: Select S-register r, and write value n to S-register r. Limited to writeable S-registers. Sr?: Select S-register r, read and report its value. T Select Tone Dialing. T is both a command and a dial modifier. Applies to all subsequent D commands, until modified by the P command or the P dial modifier. This command instructs the modem to send DTMF tones while dialing. This is the default setting. DCE Response Format. Vn controls whether result codes (including call progress and negotiation progress messages) are displayed as words or their numeric equivalents. 0: Displays result codes as digits. 1: Displays result codes as text (default). Wn Result Code Option. 0: CONNECT result code reports DTE speed. Disable protocol result code. 1: CONNECT result code reports DTE speed. Enable protocol result code 2: CONNECT result code reports DCE speed. Enable protocl result codes (default). Continued

Command Xn Description Result Code Selection and Call Progress Monitoring. Xn enables tone detection options used in the dialing process. As these functions are chosen, the modem chip sets result codes are also affected. Therefore, this command is frequently used to control the modem chip set's responses. The primary function of this control is to control the modem chip sets call response capabilities. Ext. Result Code Dial Tone Detect X0: Disable X1: Enable X2: Enable X3: Enable X4: Enable X5: Enable X6: Enable X7: Disable Extended Result Codes Disable Disable Enable Disable Enable Enable Enable Enable Busy Tone Detect Disable Disable Disable Enable Enable (Default) Enable Enable Enable
Disabled: Displays only the basic result codes OK, CONNECT, RING, NO CARRIER, and ERROR Enabled: Displays basic result codes, along with the connect message and the modems date, rate, and an indication of the modems error correction and data compression operation

Dial Tone Detect

Disabled: The modem dials a call regardless of whether it detects a dial tone. The period of time the modem waits before dialing is specified in register S6. Enabled: The modem dials only upon detection of a dial tone, and disconnects the call if the dial tone is not detected within 10 seconds.

Busy Tone Detect Yn

Disabled: The modem ignores any busy tones it receives. Enabled: The modem monitors for busy tones. Long Space Disconnect. Long space disconnect is always disabled. 0: 1: Disable long space disconnect (default). Enable long space disconnect. NOT SUPPORTED
Recall Stored Profile. Zn instructs the modem chip set to go on-hook and restore the profile saved by the last &W command. Either Z0 or Z1 restores the same single profile. 0: 1: Recall user profile. Recall user profile.

Table C-2 AT Commands

Command &Bn Description V.32 Auto Retrain. This modem always auto retrains. 0: 1: &Cn Disable V.32 auto retrainNOT SUPPORTED Enable V.32 auto retrain (default)
Data Carrier Detect (DCD) Control. Data Carrier Detect is a signal from the modem to your computer indicating that the carrier signal is being received from a remote modem. DCD normally turns off when the modem no longer detects the carrier sign. This command controls the modems usage of the DCD pin of the DTE interface. 0: 1: Carrier detect always ON Carrier detect ON only when carrier is present (Default).

&Dn

Data Terminal Ready (DTR) Control. &Dn controls the modems usage of the DTR pin of the DTE interface. 0: 1: 2: 3: Ignore. The modem ignores the true status of DTR and treats it as always on. This should only be used if your computer does not provide DTR to the modem. If the DTR signal is not detected while in on-line data mode, the modem enters command mode, issues OK result code, and remains connected. If the DTR signal is not detected while in on-line data mode, the modem disconnects (default). Reset on the on-to-off DTR transition.

&F

Load ROM Default Settings. &Fn loads the configuration stored and programmed at the factory. This operation replaces all of the command options and the S-register settings in the active configuration with factory values. This command is allowed only in the off-line command state and will return an ERROR result code if entered while on-line. To load the factory settings, this command must be issued by itself. 0: Restore factory defaults. V.22bis Guard Tone Control. &Gn determines which guard tone, if any, to transmit while transmitting in the high band (answer mode). This command is only used in V.22 and V.22bis mode. This option is not used in North America and is for international use only. 0 1: 2: Guard tone disabled (default). Sets guard tone to 550Hz. Sets guard tone to 1800Hz The auxiliary relay is never closed (Default). NOT SUPPORTED, responds ERROR Disable flow control. Same as \Q0 Reserved Reserved Enables hardware flow control (RTS/CTS). Same as \Q3 (default). Enable software flow control (XON/XOFF). Same as \Q1. Asynchronous mode (default). Reserved Reserved Reserved Reserved Continued

&Gn

&Jn
Auxiliary Relay option. 0: 1:

&Kn

Local Flow Control Selection. 0: 1: 2: 3: 4:

&Mn

Asynchronous Communications Mode. 0: 1: 2: 3: 4:
Table C-2, AT Commands, Continued
Command &P Description Pulse Dial Make/Break Ratio Selection. Non-adjustable in some countries. In those countries the &P command shall be accepted and ignored. This command is effective only for Japan. 0: 1: &Qn Make/break ratio 34/66% (default Make/break ratio 33/66%
Asynchronous Communications Mode. This setting also affects the usage of the DCD, DTR, CTS, and DSR signals in the DTE interface. 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: Asynchronous Mode, buffered. Same as \N0 or \N1 Reserved Reserved Reserved Reserved Enables error control mode, same as \N3. Same as \N3. (Default) Selects asynchronous mode with Automatic Speed Buffering, ame as \N0. Reserved MNP error control mode. If an MNP error control protocol is not established, the modem will fall back according to the current user setting in S36. V.42 or MNP error control mode. If neither error control protocol is established, the modem will fallback according to the current user setting in S36. DSR always ON (default). DSR is OFF when the modem is in the idle state, and when the modem is in a test mode. DSR circuit is turned ON at the start of the handshaking process. DSR is turned off when the hangup process is started.

Set Break Control. /K determines how the modem processes a Break signal received from the local DTE during a connection (online). 0: 1: 2: 3: 4: 5: Reserved, returns ERROR. Reserved, returns ERROR. Reserved, returns ERROR. Reserved, returns ERROR. Reserved, returns ERROR. Modem sheds the break to the remote modem in sequence with the transmitted data, non-destructive/non-expedited (default).
Error Control Mode Selection. \Nn determines the type of error control used by the modem when sending or receiving data. 0: 1: 2: Selects normal (speed buffering) mode. No error control (same as &Q6). Selects direct (pass through) mode. MNP* or disconnect mode. The modem attempts to connect using MNP 24 error control procedures. If this fails, the modem disconnects. This is also known as MNP reliable mode. V.42, MNP, or buffer (default). The modem attempts to connect in V.42 error control mode. If this fails, the modem attempts to connect in MNP mode. If this fails, the modem connects in buffer mode and continues operation. This is also known as V.42/MNP auto reliable mode (same as &Q5). V.42 or disconnect. The modem attempts to connect in V.42 error control mode. If this fails, the call will be disconnected. V.42. MNP or buffer (same as \N3). V.42. MNP or buffer (same as \N3). Disable flow control. Same as &K0. XON/XOFF software flow control. Same as &K4. CTS-only flow control. This is not supported and the response is ERROR. Hardware flow control (RTS/CTS) (default). Same as &K3. Continued

4: 5: 7: \Q 0: 1: 2: 3:

Local Flow Control Selection. Also controllable via &K.
Command \Tn Description Inactivity Timer. \Tn specifies the length of time (in minutes) that the modem will wait before disconnecting when no data is sent or received. A setting of zero disables the timer. Alternatively, this timer may be specified in register S30. Allowable range and default are country-specific. 0: Inactivity timer disabled (default). 1-255: Inactivity time in minutes. *MNP is a registered Trademark of Microcom \Vn Protocol Result Code. Controls whether the string /ARQ is appended to the verbose CONNECT message if a protocol is in use. May also be controlled with bit 1 of S95. 0: 1: \Xn Disable protocol result code appended to DCE speed. Enable protocol result code appended to DCE speed (default).
XON/XOFF Pass Through. When using XON/XOFF flow control, controls whether the flow control characters are also sent to the remote modem. 0: 1: Process flow control characters locally. (default) Process flow control characters locally, and pass them through to the remote modem so that they can process the characters. NOT SUPPORTED responds ERROR

&&C

Read from /Write to DSP Register. &&C<loc>,<val>: Write <val> to the DSP register at <loc> &&C<loc> Read from the DSP register at <loc>

&&L &&R

Line to Line Loopback Write to/Read from DSP RAM Location. AT&&R<loc>,<val>: Writes the value <val> to DSP RAM location <loc> AT&&R<loc>: Reads from location <loc>.

+FCLASS

Service Class Selection. This command sets the modem for class n operation. 000: data mode (default) 001: FAX class 1 008: voice mode Command options: +FCLASS=0 Select data mode. +FCLASS=1 Select Facsimile Class 1. +FCLASS=8 Select voice mode. +FCLASS? Causes the modem to display the current setting. +FCLASS=? Causes the modem to display the classes it supports.
Data Calling Tone. Data Calling Tone is a tone of a certain frequency and cadence as specified in V.25 which allows remote Data/FAX/Voice discrimination. The frequency is 1300 Hz with a cadence of.5 s on and 2 s off. 0: 1: Disabled (default). Enabled.
View Numbers in Blacklist. If blacklisting is in effect, this command displays the numbers for which the last call attempted in the past two hours failed. The ERROR result code appears in countries that do not require blacklisting. Continued
Command %Cn Description Data Compression Control. %Cn determines the operation of V.42bis and MNP class 5 data compression. Online changes do not take effect until a disconnect occurs first. 0: Disables V.42bis/MNP 5 data compression. 1: Enables MNP 5 data compression. (default) +FCLASS=8 Enter Voice Mode. The command AT+FCLASS=8 puts the modem in voice mode. Speakerphone and TAD modes are subsumed under the more general heading of voice mode, and use a particular subset of voice mode commands to implement their respective features and functions. The modem controller will maintain the overall state of the system so as to know when voice commands are issued in the context of using the speakerphone or other voice contexts. Initialize Voice Parameters. The command AT+VIP causes the modem to initialize all the voice parameters to their default values. The command has no effect on the +FCLASS setting Distinctive Ringing & Cadence Report. This command will enable the distinctive ringing feature. This will allow a report of DROF/DRON to follow an exact ring cadence coming over the phone line. +VDR=<enable>,<report> +VDR?: Returns the current values of <enable> and <report> +VDR=?: Queries the DCE for the range of supported distinctive ring +VGS +VGT (Same as +VGT) Speaker Volume Control. This command will enable the speaker volume control. +VGT=<level> <level> is 0-255 <level>=128: Nominal volume level for sending to speaker +VGT=? +VGT=? +VGM +VGR Returns the current microphone gain setting. (0-255) configurations

AT+VLS?

Table C-3 FAX Commands
Command +FCLASS=1 +FTS=<n> Description Enter FAX Mode. The command AT+FCLASS=1 puts the modem in FAX mode. Transmission Silence. This command causes the modem to stop transmitting data and pause for 10 * n ms. At the end of this period, the modem then responds OK. You can specify any number from 0 through 255 as the value of n; for example, a value of 5 specifies a period of 50 ms. This is a FAX command only, responds with the ERROR result code if in data mode. Receive Silence. This command causes the modem to listen and wait for a 10 * n ms period of silence on the line. At the end of this period, the modem then responds OK. You can specify any number from 0 through 255 as the value of n; for example, a value of 5 specifies a period of 50 ms. This is a FAX command only, responds with the ERROR result code if in data mode. N=0255 (10 ms intervals) +FTM=n FAX data transmit protocol. This command causes the modem to transmit data at the modulation specified by <n>. This is a FAX command only, reponds with the ERROR result code if in data mode. The following table shows the values you can enter for this command and the meaning of those falues. Command Option +FTM=3 +FTM=24 +FTM=48 +FTM=72 +FTM=96 +FTM=73 +FTM=74 +FTM=97 +FTM=98 +FTM=121 +FTM=122 +FTM=145 +FTM=146 +FTM=? +FRM=n Modulation V.21 Channel 2 V.27ter V.27ter V.29 V.29 V.17 V.17 V.17 V.17 V.17(short train) Speed (bits/s) 14400 14400

+FRS=<n>

V.17(short train) 7200 V.17(short train) 9600 V.17(short train) 12000
Reports range of legal values for the +FTM command. The modem reports3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 FAX data receive protocol. This command causes the modem to receive data at the modulation specified by <n>. This is a FAX command only, responds with the ERROR result code if in data mode. The following table shows the values you can enter for this command and the meaning of those values. Command Option +FRM=3 +FRM=24 +FRM=48 +FRM=72 +FRM=96 +FRM=73 +FRM=74 +FRM=97 +FRM=98 +FRM=121 +FRM=122 +FRM=145 +FRM=146 Modulation V.21 Channel 2 V.27ter V.27ter V.29 V.29 V.17 V.17(short train) V.17 V.17(short train) V.17 V.17(short train) V.17 V.17(short train) Speed (bits/s) 14400 Continued
Table C-3, FAX Commands, Continued
Command +FRM=? +FTH=n Description Reports range of legal values for the +FRM command. The modem reports3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 FAX HDLC Transmit Carrier <n>. This command causes the modem to transmit data framed in the HDLC protocol at the modulation specified by <n>. This is a FAX command only, responds with the ERROR result code if in data mode. The following table shows the values you can enter for this command and the meaning of those values. Command Option +FTH=3 +FTH=24 +FTH=48 +FTH=72 +FTH=96 +FTH=73 +FTH=74 +FTH=97 +FTH=98 +FTH=121 +FTH=122 +FTH=145 +FTH=146 +FTH=? +FRH=n Modulation V.21 Channel 2 V.27ter V.27ter V.29 V.29 V.17 V.17 V.17 V.17 V.17(short train) Speed (bits/s) 14400 14400

Reports range of legal values for the +FTH command. The modem reports3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146 FAX HDLC Receive Carrier <n>. This command causes the modem to receive data framed in the HDLC protocol at the modulation specified by <n>. This is a FAX command only, responds with the ERROR result code if in data mode. The following table shows the values you can enter for this command an the meaning of those values. Command Option +FRH=3 +FRH=24 +FRH=48 +FRH=72 +FRH=96 +FRH=73 +FRH=74 +FRH=97 +FRH=98 +FRH=121 +FRH=122 +FRH=145 +FRH=146 Modulation V.21 Channel 2 V.27ter V.27ter V.29 V.29 V.17 V.17 V.17 V.17 V.17(short train) Speed (bits/s) 14400 14400

+FRH=?

Reports range of legal values for the +FRH command. The modem reports3, 24, 48, 72, 73, 74, 96, 97, 98, 121, 122, 145, 146