User's Manual
Table Of Contents
- Contents
- Hardware Installation
- Software Supplied
- Hardware Installation
- Unpacking and Inspection
- Other Required Equipment
- Installing Card and Cables
- PRO/100 Modem and Ethernet Connections
- Windows* 95 Installation
- Which Version of Windows 95?
- How Can I Tell Which Version I Have?
- Additional Information in this Chapter
- Windows 95 Installation (Retail Version)
- Windows 95 OSR2 Installation (OEM Version)
- How to Install for Windows 95 and NetWare*
- Utilities
- Power-Saving Modes
- Windows 95 Troubleshooting
- Troubleshooting Checklist
- Windows 95 Driver Parameters Reference
- Windows NT Installation
- Which Version of Windows NT?
- How Can I Tell Which Version and Service Pack I Have?
- Additional Information in this Chapter
- Windows NT 4.0 Installation
- Windows NT 3.51 Installation
- Power-Saving Modes
- Utilities
- Windows NT Driver Parameters Reference
- Windows 3.x/DOS Installation
- Installation under MS-DOS
- Windows 3.x Network Driver Parameters
- ODI Settings (for M16BODI.COM)
- Error Messages for Windows 3.x and MS-DOS Drivers
- Windows 3.x Troubleshooting
- Computer-Specific Application Notes (Windows 3.x)
- Utilities and Applications
- Utilities
- Country Identifier Utility
- Modem Test Utility
- Diagnostic Test Utility (M16BTEST.EXE)
- COM port monitor (Windows 3.x only)
- Communications Application Notes and Modem
- Modem Reference
- Result Codes
- AT Command Reference
- S-Register Reference
- Automated Customer Support
- Specifications
- Agency Notices
- Software License Agreement
- Index

Modem Reference 6-9
Fn Online Data Character Echo command
Ths ATFn command determines whether the modem will echo data from
the DTE. This modem does not support the F0 version of the command.
To ensure backward compatibility, the modem will accept F1.
F0 Online data character echo enabled (not supported;
returns ERROR)
F1 Online data character echo disabled
Hn Switch Hook Options
The ATHn command hangs up the modem or prepares it for dialing.
ATH0 Causes the modem to go on-hook (default).
ATH1 Causes the modem to go off-hook (this command is
restricted in some countries).
In Request ID Information
The ATI command has various options which are used to instruct the
modem to provide specific information about itself.
I0 Displays modem controller firmware revision (same as
I3)
I1 Calculates ROM checksum and displays it on the DTE
(for example, 12AB)
I2 Performs a ROM check and calculates and verifies the
checksum. displaying OK or ERROR.
I3 Displays modem firmware revision information
I12 Returns country code (for example, North America)