Configure dialup modem to use maximum port speed

Set BPS for the modem:
  1. Open the Control Panel
  2. Double click the Phone and Modem options-applet
  3. Select the Modems-tab
  4. Choose your modem and press the Properties-button
  5. Select the General-tab (Here is also the modem-init-string)
  6. Set the Maximum Port Speed to:
    • 115200 if having a 56K modem
    • 57600 if having a 28.8K/33.6K modem
Set BPS for the serial port:
  1. Open the Control Panel
  2. Double click the System-applet
  3. Select the Hardware-tab
  4. Press the Device Manager-button
  5. Expand the Ports-node
  6. Double click the serial port, which your modem is attached to
  7. Choose the Port Settings-tab
  8. Set the Bits Per Second to:
    • 115200 if having a 56K modem
    • 57600 if having a 28.8K/33.6K modem
Set BPS for the connection:
  1. Open the Control Panel
  2. Double click the Network and Dial-up Connections-applet
  3. Right click your dial-up connection and choose Properties
  4. Select the General-tab
  5. Press the Configure-button.
  6. Set the Maximum Speed (bps) to:
    • 115200 if having a 56K modem
    • 57600 if having a 28.8K/33.6K modem
Related Optimize dialup modem connection
Related Configure maximum port speed for modem in WinXP

Updated: 15 May 2007

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