I have this variable at mainActiity

private lateinit var telephonyManager: TelephonyManager

and this fun

fun initTelephonyManager06() {
Log.i("ppp", "fun initTelephonyManager06() {")

telephonyManager =
getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager

if ( Build.VERSION.SDK_INT >= Build.VERSION_CODES.S ) {
Log.i("ppp", "if (Build.VERSION.SDK_INT >=
Build.VERSION_CODES.S) {")
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.READ_PHONE_STATE)
== PackageManager.PERMISSION_GRANTED ) {

telephonyManager.registerTelephonyCallback(
mainExecutor,
object : TelephonyCallback(),
TelephonyCallback.CallStateListener {
override fun onCallStateChanged(state: Int) {
Log.i("ppp", "override fun
onCallStateChanged(state: Int) {")
// Handle call state change
when (state) {
TelephonyManager.CALL_STATE_IDLE -> {
Log.i("ppp", "State changed: " +
state + " Idle")
}

TelephonyManager.CALL_STATE_OFFHOOK -> {
Log.i("ppp", "State changed: " +
state + " Offhook")
}

TelephonyManager.CALL_STATE_RINGING -> {
Log.i("ppp", "State changed: " +
state + " Ringing")
}

else -> {}
}
}
})
}
} else {
Log.i("ppp", "if (Build.VERSION.SDK_INT <
Build.VERSION_CODES.S) {")
telephonyManager.listen(object : PhoneStateListener() {
override fun onCallStateChanged(state: Int,
phoneNumber: String?) {
// Handle call state change
when ( state ) {
TelephonyManager.CALL_STATE_IDLE -> {
Log.i("ppp", "State changed: " + state + "
Idle")
}

TelephonyManager.CALL_STATE_OFFHOOK -> {
Log.i("ppp", "State changed: " + state + "
Offhook")
}

TelephonyManager.CALL_STATE_RINGING -> {
Log.i("ppp","State changed: " + state + "
Ringing")
}

else -> {}
}
}
}, PhoneStateListener.LISTEN_CALL_STATE)
}

}

and in androidmanifest.xml this permision

<uses-permission android:name="android.permission.READ_PHONE_STATE" />

under android 31 S it work ok. Show every state.

But android upper or equal 31 don't show the state.

How to fix it? What to do?