Access to Samsung Omnia i900 Secret Volume Control

Samsung Omnia is a great phone, with 5MP camera, 3.2" touchscreen, internal 8GB/16GB, microsd slot, GPS, Bluetooth, Wifi, and Windows Mobile 6.1. It had almost every feature that a typical user would ever need.
One problem that I find with the phone is the dual usage of phone speaker, it acts as the loud speaker also. The default factory volume settings is a little too soft for noisy areas.

First open the phone dial pad, then type *#0002*28346#

You will see a menu like

Press on Menu to modify the volume settings. Now you have access to the volume settings that had been hidden by Samsung.