New phone- SCH-u370 making BT handsfree sound better?

[Comdrpopnfresh]

I recently upgraded my phone to a samsung sch-u370, and noticed it offers some bluetooth control/settings I didn't have before. After having paired and used the phone with my LG HFB-500 handsfree car kit, the phone has the Bluetooth 'port speed' set to 115200 (of 19200 57600 115200 230400 options). I'm wondering if raising the port speed to 230400 may improve the quality of sound in/out of the hfb-500.

some specs on the lg hfb-500:
-Bluetooth Ver 2.1
-Multi Connection
-Noise Reduction
-Echo Cancellation

http://www.lg.com/uk/mobile-phones/mobile-phone-accessories/LG-HFB-500.jsp
http://www.samsung.com/us/mobile/cel...SCH-U820ZKAVZW (closest thing to my actual model number)