Fax Mode Capabilities

• ITU-T V.17, V.29, V.27ter, and V.21 Channel 2, 14,400bps - 300bps
• TIA/EIA 578 Class 1 Fax and TIA/EIA 592 Class 2.0 Fax

Data Mode Capabilities

• Throughput to 115.2kbps
• Automatic DCE speed sensing to 115.2kbps
• X2^TM 56K Compatible
• ITU-T V.34bis 33,600bps - 31,200bps
• V.34 28,800bps - 2,400bps
• V.32terbo 19200bps - 16,800bps
• ITU-T V.32bis, V.32, V.23, V.22bis, V.22 14,400bps - 2,400bps
• ITU-T V.21, Bell 212A, and Bell 103 300bps
• V.42 and MNP 2-4 error correction
• V.42bis and MNP 5 data compression
• TIA/EIA 602 standard for AT command set

Speakerphone Capabilities

• Full-duplex speakerphone (hybrid and acoustic echo cancellation) without loosing any sound quality

Voice Mode Capabilities

• Personal voice mail system with multiple mailboxes
• Fax-on-Demand
• Remote or local telephone answering machine / voice mail control
• IMA ADPCM compression at 8.0 kHz, 8-bit
• Record/playback via handset (Optional)
• Record/playback via mic/speaker

This installation guide provides detailed instructions for installing your modem with computer or terminal.

Unpack your components and make sure you have the following items:

• The modem
• A modular telephone cable to connect your modem to the telephone line
• Power adapter
• This installation guide and user's manual
• Communication software and manual (option)
• You will also need an available RS-232 serial port on the personal computer and a properly configured RS-232C interface cable.
• Microphone (option)
• Stereo audio cable (option)
• A driver disk for Windows 95, Windows 98, Windows NT 4.0

When you open your package, make sure all of the above items are included and not damaged. If you see that any components are damaged, please notify your dealer immediately.

To complete your data communication system, you will need the following items:

• Some type of communication software, if not included.
• An optional telephone set (you do not need to use a telephone with your modem).

Your modem fits neatly under most standard desk-top telephone. You should place your modem near a 110 or 220 VAC power source (such as a wall outlet). The distance between the modem and your computer, terminal, or printer is determined by the length of your RS-232-C cable.

Be sure you can clearly see the panel LEDs, reach the ON/OFF switch on the back panel, and hear the built-in speaker when you dial calls or the speakerphone is in use.

When connecting your modem to a computer, you will need:

• An available RS-232-C serial port.
• An RS-232-C cable with at least one male connector for connecting to your modem; Your computer's requirements determine the gender of the connector on the other end.
• Software that lets the modem communicates with your computer.

If you lack any of these items, refer to your computer reference manual or contact your computer dealer. If your computer does not have an RS-232C DB9 connector, obtain an adapter cable from your computer dealer.

Use the following procedure to connect your modem to a computer or terminal.

Use the following procedure to connect your modem to the telephone line:

Your modem is so convenient. It provides a second modular telephone jack that lets you connect your telephone to the same telephone line the modem is using. This lets you manually dial data calls or make voice calls when you are not using your modem.

Use the following procedure to connect your telephone to your modem:

Use the following procedure to connect your modem to an AC outlet:

1. Insert the supplied power cable into the round AC-IN connector next to the POWER switch on the back of the modem (see Figure 1-1).
2. Plug the end with the power pack into either a 110 or 220 VAC outlet.
3. Turn the POWER switch to ON position then the MR LED goes on.
4. Turn on the computer or terminal connected to the modem.

If you want to use an external MIC or speaker instead of using the built-in speaker, you need to insert your external MIC or speaker cable into the round MIC or speaker connector. After you’ve inserted the external MIC or speaker, the default built-in speaker will be disabled. (see Figure 1-1)

Before proceeding, make sure your connection matches the one shown in Figure 1-3.

If you connected the modem to a computer, place the computer into terminal mode and complete the configuration information required by the software. Refer to your software manual to find out which commands to use.

Your modem is now ready for operation. Refer to the manual that came with your communication software to begin communication. If you will be communicating directly with your modem or if you want to find out more about the modem's operation, proceed to user's manual.

• If you want to turn off your modem, set the POWER switch on the back of the modem to the OFF position.

The modem has 9 front panel LEDs, which keep you constantly informed of the modem's status. Figure 1-4 shows the LEDs.

This chapter describes the format to use when typing modem commands. This chapter also describes the responses that your modem sends to your computer screen when you execute, or try to execute, modem commands.

If you will be using a communications software program to make data calls, you probably will not need to type commands, because your software program will handle these tasks for you. Similarly, you probably will not see the responses, because your software program may intercept them.

However, if you perform data activities directly with your modem, you will find the format for typing modem commands and modem response helpful.

Using commands, you can have your modem perform a variety of activities, such as dialing or answering a data call. In order to send commands to your modem, you must type a command line while your modem is in command mode.

To type a command line:

Type AT. These characters must precede every command line (except when you type the A/ command, described in Chapter 4).

Type the commands you want your modem to execute. A command line can contain up to 40 characters.

Press the Enter key. The modem will then execute the commands on the command line.

If you make a mistake while typing a command, press the "Backspace" key to delete the error. You can delete every command except AT.

You can only use spaces, parentheses, commas, (a comma is equal to 1 or 2 seconds of pause), and hyphens to make a command line easier to read.

For example:

AT M3 DT 9, 1 (818) 123-4567

Your modem ignores spaces, parentheses, and hyphens when executing a command line, but these characters apply to the 40 characters limit.

If you want to type more than 40 characters on a command line, type a regular command line (up to 40 characters long) and end it with a semicolon as the last character. When you press Enter, your modem executes the commands and returns to command mode so you can type your next command line.

Some commands require a numeric parameter such as 0, 1, or 2. For example, the Q command determines whether your modem sends a modem response after executing a modem command line:

Q0 tells the modem to send responses.

Q1 tells the modem not to send responses.

If you type ATQ and press the "Enter" key without typing a parameter of 0 or 1 after the Q, it's like typing Q0 and the modem will send modem responses.

For your convenience, the last command line you execute remains stored in the modem's memory until you type a new command line and press the Enter key. If you want to re-execute the last command, type A/.

When you want to use the A/ command, you don't need to preface it with the AT characters or end it by pressing the Enter key. Just type A/ to have your modem automatically re-execute the last command line.

When you send a command to your modem, it sends a response to your computer. For example, if you send a modem command to your modem, the modem should respond with OK. You may never see these responses because certain communications software will intercept them before they can be displayed on your computer screen.

Modems that support the MNP 2-5 and V.42/V.42bis error-correction and data-compression protocol can also use the &A1 command to append /ARQ to the end of all CONNECT responses when your modem makes an error-correction data connection with a remote modem. If you want the additional protocol information appended to the /ARQ response, then use &A2. To receive all protocol responses, use &A3.

Modem responses can be from one of seven different response sets. These sets are designated by X0, X1, X2, X3, X4,X5, and X6. They also determine different dialing characteristics, please see Chapter 4 for a listing of your modem AT command set.

The X0 response set consists of the first five responses in Table 3-1. With this response set, you receive the CONNECT response for all connections, regardless of the speed at which they're made.

The X2 response set consists of all responses in Table 3-1, except BUSY, NO ANSWER and RINGING responses.

The X3 response set consists of all responses in Table 3-1, except NO DIALTONE and RINGING response.

When this response set is in effect and you send a Dial command to your modem, your modem will blind dial the call. If the telephone number dialed is busy, your modem will send the BUSY response.

The X4 response set consists of all responses in Table 3-1. This response set allows the modem to detect a dial tone and also a busy signal.

The X5 response set consists of all responses in Table 3-1, except NO DIALTONE response. This response set allows the modem to detect a dial tone and also a busy signal.

The X6 response set consists of all responses in Table 3-1. This response set is the same as X4.

Below is a table of special dialing functions. These functions are activated by the value of the X command. In the case of both Adaptive dialing and Fast dial, neither function will run if the X command is not set for it. In the case of Wait for 2^nd dial tone and Wait for answer, only a fixed delay will be used if the X command is not set for them.

ARQ only appears when the extended result codes configuration option is enabled. ARQ is replaced, or appended by one or more of the following symbols, depending upon the error control and/or data compression method used:

V.42bis - V.42 error control and V.42bis data compression

V.42 - V.42 error control only

MNP5 - MNP class 4 error control and MNP class 5 data compression

MNP4 - MNP class 4 error control only

Note: EC means Error Correcting.

If you will be using a data communications software program to send and receive files, you probably will not need to use these commands. Your software program should handle these tasks for you. However, if you want to bypass your communications software program and perform modem tasks directly with your modem, you will find the commands described in this chapter helpful.

Remember that each command, except for +++ and A/, is prefaced by AT and executed when you press the Enter key. To review the format used to send modem commands, please refer to chapter 2.