Configure dialup modem to use maximum port speed

Set BPS for the modem:

Open the Control Panel
Double click the Phone and Modem options-applet
Select the Modems-tab
Choose your modem and press the Properties-button
Select the Modem-tab
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:

Open the Control Panel
Double click the Phone and Modem options-applet
Select the Modems-tab
Choose your modem and press the Properties-button
Select the Advanced-tab
Press the Change Default Preferences...-button
Set the Port Speed to:
- 115200 if having a 56K modem
- 57600 if having a 28.8K/33.6K modem
Set the Data Protocol to Forced EC (If problems set back to Standard)
Set the Compression to Enabled (Unless using a WinModem)
Set the Flow control to Hardware

Set BPS for the connection:

Open the Control Panel
Double click the Network and Dial-up Connections-applet
Right click your dial-up connection and choose Properties
Select the General-tab
Press the Configure-button.
Set the Maximum Speed (bps) to:
- 115200 if having a 56K modem
- 57600 if having a 28.8K/33.6K modem