If anyone has one of these x AT&T fones and people complain about the crappy outgoing speech I found this solution on the  Eternity support board. Tested it and  boy it sure worked.  I was about to toss this fone into the Telecom fone recycling box.

http://www.samsung-eternity.com/general-samsung-eternity-discussion/how-to-improve-call-mic-volume/

No for a similar link to the Galaxy 3 (i5800) it needs a boost as well..