2G on iPhone 4

[10yearfido]

Someone mentioned to me that disabling 3G could improve battery performance. How do I disable 3G and force it to use 2G?

***Edited to add labels***

[Bodimz · Accepted solution]

Hi 10yearfido,

From the settings menu;

Choose General > Network, then tap to turn 3G on or off.

Have a nice day !

[mike_from_ATT]

does it effect call quality in any way? i have herd there can be a difference if fido uses different voice codecs for each network, do you know id they do?

Also, does fido use the same towers for both networks?

Thanks

[10yearfido]

Thanks very much.