Turning the volume up the easy way...

[xrussx]

Earpiece volume low? Try this:
Settings > Call Settings > HAC mode (turn on)

Warning your first call out might be loud. Real Loud.

 

[jree]

I had no idea about this. Thanks since I'm half deaf and have yet to find a phone loud enough. This actually did the trick

 

[guarepr]

Thanks for that info. I didn't know either.

 

[Thassodar]

Whaaaa they don't have this option on the Captivate

 

[fjweinbk]

Can I expect louder volume if I use a bluetooth headset?

 

[wildblue]

Found this:

xda-developers - View Single Post - Secret Code to Increase Brightness and Earpiece Volume beyond factory max setting????

Haven't tried it but looks like it could be useful for adjusting several max volume settings.