Fixed stun setting not enabling it

CHANGELOG.md

@@ -25,6 +25,7 @@ Group changes to describe their impact on the project, as follows:
 
 ### Fixed
 - Negative gain in audio settings is allowed again
+- STUN server URL setting not enabling it for non sip.linphone.org accounts
 - Contacts list header case comparison
 - Stop voice recording playback when sending chat message
 

app/src/main/java/org/linphone/activities/main/settings/viewmodels/AccountSettingsViewModel.kt

@@ -301,11 +301,13 @@ class AccountSettingsViewModel(val account: Account) : GenericSettingsViewModel(
                 Log.w("[Account Settings] No NAT Policy object in account params yet")
                 val natPolicy = core.createNatPolicy()
                 natPolicy.stunServer = newValue
+                natPolicy.isStunEnabled = newValue.isNotEmpty()
                 params.natPolicy = natPolicy
             } else {
                 params.natPolicy?.stunServer = newValue
-                if (newValue.isEmpty()) ice.value = false
+                params.natPolicy?.isStunEnabled = newValue.isNotEmpty()
             }
+            if (newValue.isEmpty()) ice.value = false
             stunServer.value = newValue
             account.params = params
         }