Share your experience!
When I speak with my Xperia T3 there is low volume - with internal speaker and with bluetooth speakerphone.
Using volume buttons I can adjust it, but insufficiently.
When I use speakerphone (Jabra SP5050) with other phone there is normal volume.
Settings - Call settings untick Microphone noise suppression
Thank you, this is really solution for internal speaker.
But for Bluetooth speakerphone problem is still exists.