How AWFAX Initializes a Class 1 or Class 2 Fax Modem

• 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 :
Version : WINDOWS:3.11
Platform : WINDOWS
Issue type :