DOCUMENT:Q114427 01-OCT-1999 [win3x] TITLE :How AWFAX Initializes a Class 1 or Class 2 Fax Modem PRODUCT :Microsoft Windows 3.x Retail Product PROD/VER:WINDOWS:3.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows for Workgroups version 3.11 ------------------------------------------------------------------------------- SUMMARY ======= The following information describes the process Microsoft At Work PC Fax uses to initialize Class 1 and Class 2 fax modems. This information is useful for troubleshooting initialization problems--the commands below can be sent to the fax modem using Windows Terminal to determine exactly where initialization fails. MORE INFORMATION ================ 1. Any command that is specified on the SetupCommand= entry in the EFAXPUMP.INI file is executed. 2. The following commands are sent to the modem: AT&F - Resets the modem to factory defaults E0 - Turns echo off V1 - Causes verbose responses Q0 - Puts the modem in quiet mode &C1 - Keeps DSR asserted &D3 - Tells the modem to reset on DTR &D2 - Has same affect as &D3 on modems that do not support &D3 S0=0 - Turns AutoAnswer off S7=255 - Sets the training time-out to 255 seconds S8= - Pause time for commas in Dial string, then either X4 (recognize busy/dial tone) or X0 (for blind dial) \Q1 - XON/XOFF for Microcom and compatible modems &K4 - Hayes-compatible XON/XOFF command \J0 - Microcom command for do not send DTE/DCE (megahertz modems recognize this command also) &E5 - Multitech XON/XOFF command *F2 - Bidirectional XON/XOFF flow control 3. The Setup command is run again and issues an AT+FCLASS=1 or AT+FCLASS=2 (depending on the modem class) and either answers the phone or picks it up to dial. Additional query words: 3.11 init call efax fax modem ====================================================================== Keywords : Technology : kbAudDeveloper kbWFWSearch kbWFW311 Version : WINDOWS:3.11 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 1999.