The Country setting in the codec configures country-specific settings like:
•POTS line ring tones.
•POTS line impedance.
•Use of G.711 μ-law for North America and Japan, and G.711 a-law in most other regions of the world (e.g. Europe/Australasia), when the G.711 algorithm is used for IP/SIP or ISDN connections.
1.Press the HOME 
button to return to the Home screen, then tap Settings 
.
2.Tap to expand the System menu and then tap Country 
.
3.Swipe up or down to navigate to the correct country, then tap to select and save the new setting.
