mute status is continued when app use callkit

device: iOS16.1.1 and iPhone13

bug problem description 1、the second call line can't capture mic's sound data

test case：

1. App is running backgorud or app is killed， and iPhone is locked status;
2. first call line is ringring， and app answerd firs line, and mute mic at first line. so far, the voices of both sides are normal;
3. the second call line is comming, and app select button that answerd second call line and end first call line, now problem occurred，other side can't listen App's mic sound, app can listen other side mic's sound, mute's status is unmuted's status at callkit UI;