Default Vtiger DB Login and Password for integration

Hi,
For VICIDIALNOW 2.0.5 Vtiger DB Name is vtigercrm503, can anyone tell me the default DB User and Password for integration.
Best regards,
For VICIDIALNOW 2.0.5 Vtiger DB Name is vtigercrm503, can anyone tell me the default DB User and Password for integration.
Best regards,