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56K manual
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210 pages, 5.29 Mb
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http://www.3com.com/
3Com OfficeConnect
56K Business Modem
Command Reference
Published January 1999
Contents
Main
3Com Corporation 3800 Golf Rd. Rolling Meadows, Illinois 60008
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A BOUT T HIS G
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ABOUT THIS GUIDE
Conventions
Table 1 Notice Icons
Table 2 Text Conventions
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Windows 95/98
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Windows NT 4.0 and Later
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Macintosh
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Other Operating Systems
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2
Overview
Basic AT commands
Using S-Registers
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Understanding bit-mapped S-Registers
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This chapter contains information about
Command and Online Modes
DO NOT type AT before +++ or <ENTER> after the command
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Controlling Local Echo
Data and Fax Modes
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H ANGING U
Dialing
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Carrier Loss Redial
Answering Calls
Making International calls
Call Detection
Caller ID Functions
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Distinctive Ring Support
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Overview
Saving a Phone Number to NVRAM
Working with Flash Memory
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D
This chapter contains information about:
Result Code Display Commands
and in what format they are displayed
Additional Result Code Subsets
7
S
Data Terminal Ready
Data Set Ready
Carrier Detect
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8
Overview
Serial Port Rates
Your software may use terms such as locked serial port (fixed rate) or autobaud (variable rate).
The serial port rate MUST be equal to or higher than the Connection rate (&Nn).
Connection Rates
Controlling Link Speeds with &N and &U
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&N and &U Command Values Use the following table for a complete list of &N and &U link speeds and
their associated indexes:
Setting DTE Rate to 230 Kbps
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THE BUSINESS MODEM REMOTELY
Overview
Setting Up Remote Access
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Accessing the Host
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Overview
Setting up Dial Security
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Maintaining Security Accounts
What the Guest User Needs to Do
Configuring Dial Security Remotely
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Overview
Hardware and Software Flow Control
Received Data Flow Control
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Transmit-Data Flow Control
by its attached computer.
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DATA COMPRESSION, AND T
Handshaking
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V.90 Capabilities
Other Protocols
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Error Control
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Data Compression
Getting Maximum Throughput
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S
Querying
Overview
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Displaying Help
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Overview
Testing the Business Modem using AT&T n
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Testing the Business Modem using S-Resister 16
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Problems That Occur Before Connecting
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Problems that Occur After Connecting
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Overview
Checking Your Business Modems Software Version
Getting New Operating Software
Sending New Software to your modem
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If Your Modem Doesnt Respond
A
Understanding Bit-Mapped S-Registers
How bits are mapped to decimal values
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Using Bits
Using Decimal Value s
Default S-Register Settings
* Bit-mapped registers have up to eight functions.
A complete list of S-Registers
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Basic Command Set
1 Wait 1 second after sending the last item of data.
Optional parameters:
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See Appendix A, S-Registers for a listing of all the S-Registers.
Ampersand (&)
The serial port rate MUST be equal to or higher than the &Nn rate.
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Percent (%)
Using%C1 will not reverse any changes that you wrote to NVRAM (with &W) or forced (with%C2).
Octothorpe (#)
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Hardware Flow Control
template send AT&F1 to your modem.
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Software Flow control
template send AT&F2 to the modem.
No Flow Control
send AT&F0 to the modem.
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S
Result Code Meanings
Result Codes Sets for Xn Value s Result Code s X0 X1 X2 X3 X4 X5 X6 X7
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Technical Specifications
is also compatible with many nonstandard schemes. The following schemes are supported: Modulation
clients can call into your Business Modem to get 56K connections
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Additional Specifications
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F
F-2 APPENDIX F: ASCII CHART
G
P
the following optional Class 2.0 fax commands:
Fax Service Class 1 Commands
FAX Service Class 2.0 Commands
Fax Mode Flow Control Setting
FCC Notice
Notes
H
This appendix explains how to view the twelve LEDs on the front of your Business Modem.
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S-Registers
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3COM CORPORATION LIMITED WARRANTY
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Notices
FCC Registration
FCC Notice
FCC Notice: Radio and Television Interference
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