UI have the latest version of Zoiper & iOS, I have iPhone 5, when I made calls, all the people am calling complain that my voice volume is low, so I purchased G.729 and tried different combinations on the voice settings and I noticed the following:
-when I turn Noise supression OFF: The other end hears me very well, but his voice volume is low and I can't hear him well.
-when I turn Noise supression ON: I hear other end very well, but he complains the volume is very low.
I tried both cases with all possible combinations between Echo Cancellation & Gain Control.
Any suggestions ?