Use the Shift4 Modem Configuration Utility

Description: The Shift4 Modem Configuration Utility is software used to scan the UTG Stub machine for available COM Ports. It is run during the installation of the UTG Stub and will generally automatically locate any available COM Ports on the machine and notify the user of which Ports have been added via this process.

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Note: A COM Port will not be available for configuration in the UTG Stub TuneUp unless it has been detected by the Modem Configuration Utility.

If a COM Port has been changed or added since the initial Stub installation, the utility can be re-run to scan for the change and add the new or updated COM Port value to the UTG Stub for configuration. This utility can be found post-installation by going to Start > Programs > Shift4 Corporation > Universal Transaction Gateway > S4Config.

Manually Adding a COM Port (if it does not appear automatically):

1. Select Add Port.
2. From the Add Port window, select the COM port you wish to use.
3. Select Ok to add the COM port.

Deleting a COM Port:

1. Select the COM port you want to remove.
2. Select the Del Port option.
3. In the confirmation window that appears, select Yes to remove the port.

Adding a Modem:

1. Select the COM port associated with the modem.
2. Select the Select button.
3. From the Select Menu, select your modem.
4. Select Ok to add the modem.