I recently installed Gizmo on my 770. The installation went smoothly and I have been able to make calls over from 3 different WiFi access points always to landlines I have been having a consistent problem with voice quality on the 770's side (I set the volume low and put it to my ear). In general, the ring sound when I make the call is loud and clear, but when I when a voice answers it tends to be very low, drops out, though it occassionally comes in loud and clear for a moment (a couple seconds). The receiver of the call (I only have CallOut) generally hears me well.

Has anyone had this problem and how did you resolve it - I have read of many people having good experiences with the 770.