Please reset network setting of both Sim one by one and than reset all settings of your's device in general management settings also Flight ✈️ mode on n off one time, restart your's device without any Sim in slots, interchange Sim in slots, turn off power saving mode then try to it's again. If you like please accept as a solution it's help to others users also, click 3dots in my reply section and click on accept solution. Thanks.
As per your query, as you have already done the possible troubleshooting steps on your device, we would request you kindly visit the service center and inspect your device with the technical team end, they will provide you with all the information in a better way after inspecting the device physically.
I am using galaxy A71 and android 13 version while receiving or making call Once the call is connected the voice of other person can't be Heard sometime .I need to restart tha phone and then make a call again I have done hard reset of my phone the problem got resolved but again same happened after few weeks kindly fix this issue through software updates very fast this issue is havey
