Is there a solution for audio crackling on incoming and outgoing calls? I have an unlocked Samsung A50 phone, US version. This happens on almost every call in the Charlotte, NC suburban area. I didn't have this problem on PagePlus, a Verizon MVNO.
One or both of the following changes have resolved the crackling audio issue. This is an Android Samsung A50, SM-A505U1. I installed Discovery LTE app to monitor 4G connections. The signal was generally low, RSRP -105 dB but similar to other phones in the house that worked OK.
The following changes did not help the issue.