Switch Between 2 Calls

[daiviien]

When you are already in a call and another incoming call comes in, after you answer that call, how do you switch back to the original call?

Every time I hang up on the new incoming call, it hangs up on the original caller.

Also, I cant figure out a way to switch between the two calls when they both are active.

This seems like a really stupid question but neither me or my friend cant figure this out lol. There is now way a complex smart phone like the Touch Pro could not have the very basic and general feature.

BTW, I am using a Sprint Touch Pro, she is using a Verzion Touch Pro