JanB97, Aug 16, 2018 : Title Call volume to low Device OnePlus3T Software Version O2 Stable 180719 Probablility of occurance 5_100% Topic Voice Call Photos Carrier/Network Telekom DEHerr Actual behavior Volume is very low. Was this a problem in previous software versions Yes This is a regression. Expected behavior Speaker should be loud enough to hear in normal situations. Any other comments Volume is set to 84 in mixer_path.xml please Change to 90-95 or add the option to change volume in a call. I tried routing all audio through the earpeace and music for example is very loud but not Phone calls. Make an call or use *#808# and test the receiver.