Hi,
I have a problem with latest build (20/08/18) of lineage OS 15.1 with TWRP 3.2.3. In few words, normal call with 2G a.k.a. GSM network does not work. If I make a call after that I press the call button, the display switch off and I can hear the voice, but the other side cannot listen me. The same thing happens in the opposite scenario i.e. when I receive a call.
By using telegram, signal o wire there are not any problems.
Do you have any suggestions?
Thank you