MaxTech V.32bis, V.42bis user manual Where To Go From Here, Executing Commands, Command Structure

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provide a user friendly method of accessing the functions you need (i.e. dialing or answering calls).

2.8 Where To Go From Here

You should familiarize yourself with the functions available from the included software by reading its manual. You will be accessing most, if not all, of the modem's functions from this software. You may also use any other commercially available communication software with the modem. Read Section 3 ONLY if you are interested in accessing the modem manually, and not through the included software. Section 4 and 5 contain reference material, and can be skipped. If you have difficulties getting your modem to work, read Section 6, Troubleshooting to find answers to commonly asked questions and problems.

Section Three - AT Command Set

3.1 Executing Commands

Commands are accepted by the modem while it is in Command Mode. Your modem is automatically in Com- mand Mode until you dial a number and establish a connec- tion. Commands may be sent to your modem from a PC running communication software or any other terminal de- vices.

Your modem is capable of data communication at rates of: 300, 1200, 2400, 4800, 9600, 14400, 19200, 38400, and 57600 bps. Make sure your COM port baud rate setting in your communications software is set to one of the above speeds.

3.2 Command Structure

All commands sent to the modem must begin with AT and end with ENTER. All commands may be typed in either upper or lower case, but not mixed. To make the command line more readable, spaces may be inserted between com- mands. If you omit a parameter from a command that requires one, it is just like specifying a parameter of 0. Example:

ATH [ENTER]

This command causes your modem to hang up.

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Contents Contents Unpacking Your Modem Hardware InstallationFasten the retaining bracket Software Installation/ConfigurationPage Devices in your computer cannot share an IRQ with COM Port and Interrupt SettingsUsing Your Modem Testing Your Modem After InstallationExecuting Commands Where To Go From HereCommand Structure Basic AT Commands Extended AT Commands Enable Trellis Coding @ Mode after DTR toggleGuard tone disabled Force DSR Signal High onDisable Auto Fall Forward/Back 22bis auto-retrain disabled22bis auto-retrain enabled Enable Auto Fall Forward/BackFax Class 1 Commands Voice Mode Commands S Registers Function Range/units Default Basic Response Codes Modem does not dial Modem does not respond to commandsModem dials but does not connect High pitch tone is heard whenever you answer the phone Modem makes a connection but no data appears on your screenModem exhibits poor voice record or playback Uart FCC ComplianceDOC Compliance Information FCC Class B StatementDisclaimer, Copyright, And Other Notices Section One Introduction Software Installation/Configuration COM Port and Interrupt Settings Switch Block SW-1 Location Switch Block Settings Testing Your Modem After Installation With AT or follow with Enter Bold text Command Function Manually answer incoming callCcitt mode Originate calls in answer modeCommands are not echoed Hz guard tone Resets modem after DTR toggleRecall factory default configuration Toggle\A3 MNP/V.42/V.42bis Commands\Q3 Switch to reliable link from normal link S Registers Register Function Range/units DefaultSection Five Result Codes Section Six Troubleshooting Modem does not dial Power 75 W Section Eight Support and Service DOC Compliance Information Disclaimer, Copyright, And Other Notices