SipPhone: fix missing-call DisconnectCause feedback

also fix delivering bad news before closing a SipAudioCallImpl object so that
apps can get the current audio-call object state before it's closed:

http://b/issue?id=3009262

Change-Id: I94c19dae8b4f252de869e614ec462b19b4ff2077

telephony/java/com/android/internal/telephony/sip/SipPhone.java

@@ -823,7 +823,9 @@ public class SipPhone extends SipPhoneBase {
 
         @Override
         public void onCallEnded(SipAudioCall call) {
-            onCallEnded(Connection.DisconnectCause.NORMAL);
+            onCallEnded(call.isInCall()
+                    ? Connection.DisconnectCause.NORMAL
+                    : Connection.DisconnectCause.INCOMING_MISSED);
         }
 
         @Override

voip/java/android/net/sip/SipAudioCallImpl.java

@@ -269,7 +269,6 @@ public class SipAudioCallImpl extends SipSessionAdapter
     @Override
     public void onCallEnded(ISipSession session) {
         Log.d(TAG, "sip call ended: " + session);
-        close();
         Listener listener = mListener;
         if (listener != null) {
             try {
@@ -278,12 +277,12 @@ public class SipAudioCallImpl extends SipSessionAdapter
                 Log.e(TAG, "onCallEnded()", t);
             }
         }
+        close();
     }
 
     @Override
     public void onCallBusy(ISipSession session) {
         Log.d(TAG, "sip call busy: " + session);
-        close(false);
         Listener listener = mListener;
         if (listener != null) {
             try {
@@ -292,6 +291,7 @@ public class SipAudioCallImpl extends SipSessionAdapter
                 Log.e(TAG, "onCallBusy()", t);
             }
         }
+        close(false);
     }
 
     @Override
@@ -316,12 +316,6 @@ public class SipAudioCallImpl extends SipSessionAdapter
                 + ": " + message);
         mErrorCode = errorCode;
         mErrorMessage = message;
-        synchronized (this) {
-            if ((mErrorCode == SipErrorCode.DATA_CONNECTION_LOST)
-                    || !isInCall()) {
-                close(true);
-            }
-        }
         Listener listener = mListener;
         if (listener != null) {
             try {
@@ -330,6 +324,12 @@ public class SipAudioCallImpl extends SipSessionAdapter
                 Log.e(TAG, "onError()", t);
             }
         }
+        synchronized (this) {
+            if ((errorCode == SipErrorCode.DATA_CONNECTION_LOST)
+                    || !isInCall()) {
+                close(true);
+            }
+        }
     }
 
     public synchronized void attachCall(ISipSession session,