That volume problem sounds odd. I would take it back and get a new one. The store may not give you a new one, but I've hear of a few folks having volume or button problems and Jawbone'll send you a new one.
Originally Posted by vrsc
How is your volume on your jawbones? I purchased a Jawbone 2 for my 3G and the volume is so low that I can't hear my friends on the other line. I've been on the phone with jawbone's tech support and bhave recently exchanged my jawbone for another jawbone but still having the same problem