User Manual
Table Of Contents
- Introduction
- Laptop System Requirements
- Hardware Installation
- Windows Installation
- Windows Modem Troubleshooting
- Modem Diagnostics Tool
- Windows NT 4.0 Modem Setup Installation
- Starting the Configuration Utility
- Configuration Menu
- Setting the Profile
- Setting the Mode
- Setting the SSID
- Setting the Transmit Rate
- Enabling Power Save Mode
- Selecting the Ad Hoc Channel
- Encryption Menu
- Disabling Encryption
- Enabling Encryption
- Creating Encryption Keys Using a Passphrase
- Creating Encryption Keys Manually
- Default Key
- Link Menu
- About Menu
- Introduction to Modem AT Commands
- Special Commands
- AT Command Reference
- Modem S-Registers
- Modem Result Codes
- Wireless Ethernet Mini PCI Adapter Specifications
- Technical Support
- Warranty
- FCC Regulations - Part 15 Declaration of Conformity (DoC)
- Canadian Department of Communications Industry Canada (IC) Notice
- European Community - CE Mark Declaration of Conformity
- European Union CTR 21 Compliance
- New Zealand Telepermit Compliance Notes
- Japan Regulatory Notices
24
Modem AT Commands
Appendix A
Mini PCI User’s Guide Xircom Inc
Repeat command
See Special Commands.
T Select Tone Dialing
The ATT command instructs the modem to use tone dialing. This mode will remain in force for
all dialing procedures unless an ATP command is issued or the dial string contains a P dial
modifier. Tone dialing is the factory-default setting.
Vn Result Code Format Options
The ATVn command, where n represents 0 or 1, determines if result codes are displayed as
numeric (short form) codes or words (long form). Numeric result codes contain only one or two
digits and this form could be used, for example, when the modem is controlled by a software
terminal emulation program that uses script files. See the list at the beginning of this topic
showing result codes in both long and short formats.
Type the command ATV or ATV0 to select numeric result codes. The factory default is to
display the result codes as words (ATV1). You should issue an ATV1 command either to reset
the factory default after a change has been made or to select the long-form (word) result codes.
Negotiation progress messages (extended result codes) are those with a numerical value of 40 or
more.
Four other AT commands, two dial modifiers, and an S-Register are also directly involved in the
generation and display of result codes. These are the ATQn, ATVn, ATWn, and ATXn
commands, the ATDW and ATD@ dial modifiers, and S-Register S95.
Wn Negotiation Progress Message Selection
The ATWn command, where n represents 0, 1, or 2, works in conjunction with S-Register S95 to
determine how that subset of the result codes - called negotiation progress messages or extended
result codes - will be used to report the type of connection, protocol, and other communication
techniques that resulted from handshaking and subsequent negotiation.
The options available to represent n in the ATWn command are:
W0
CONNECT result code reports DTE speed. If S-Register S95=0, disable the display of all extended result
codes.
W1
CONNECT result code reports DTE speed. If S-Register S95=0, enable the display of CARRIER and
PROTOCOL extended result codes only.
W2
CONNECT result code reports DCE (modem-to-modem) speed. If S-Register S95=0, disable the display of all
extended result codes.