UI reacts immediately after the user has clicked the answer button when a call is received. It stops ringing and shows an intermediate state

(connecting) until the protocol provider has sent the connected
event.

src/net/java/sip/communicator/impl/gui/main/call/CallManager.java

@@ -169,12 +169,22 @@ public void actionPerformed(ActionEvent evt)
                     && selectedPanel instanceof CallPanel
                     && ((CallPanel)selectedPanel).getCall().getCallState()
                         == CallState.CALL_INITIALIZATION) {
-            
+
                 SoundLoader.getSound(SoundLoader.BUSY).stop();
                 SoundLoader.stop(Constants.getDefaultIncomingCallAudio());
                 
                 CallPanel callPanel = (CallPanel) selectedPanel;
                 
+                Iterator participantPanels = callPanel.getParticipantsPanels();
+                
+                while (participantPanels.hasNext())
+                {
+                    CallParticipantPanel panel
+                        = (CallParticipantPanel) participantPanels.next();
+                    
+                    panel.setState("Connecting");
+                }
+                
                 Call call = callPanel.getCall();
                 
                 answerCall(call);
@@ -183,7 +193,7 @@ public void actionPerformed(ActionEvent evt)
             else if(selectedPanel != null
                         && selectedPanel instanceof CallListPanel
                         && ((CallListPanel) selectedPanel)
-                            .getCallList().getSelectedIndex() != -1) {
+                            .getCallList().getSelectedIndex() != -1) {                
                 
                 CallListPanel callListPanel = (CallListPanel) selectedPanel;
                 
@@ -198,7 +208,7 @@ else if(selectedPanel != null
             //call button is pressed over the contact list
             else if(selectedPanel != null
                     && selectedPanel instanceof ContactListPanel){
-            
+                
                 //call button is pressed when a meta contact is selected
                 if(isCallMetaContact) {
                     
@@ -450,7 +460,7 @@ public void incomingCallReceived(CallEvent event)
      * button.
      */
     public void callEnded(CallEvent event)
-    {        
+    {
         Call sourceCall = event.getSourceCall();
            
         SoundLoader.getSound(SoundLoader.BUSY).stop();

src/net/java/sip/communicator/impl/gui/main/call/CallPanel.java

@@ -278,23 +278,23 @@ else if(evt.getNewValue() == CallParticipantState.CONNECTED) {
             SoundLoader.stop(Constants.getDefaultOutgoingCallAudio());            
             participantPanel.startCallTimer();
         }
-        else if(evt.getNewValue() == CallParticipantState.CONNECTING) {
+        else if(evt.getNewValue() == CallParticipantState.CONNECTING) {            
         }
-        else if(evt.getNewValue() == CallParticipantState.DISCONNECTED) {
+        else if(evt.getNewValue() == CallParticipantState.DISCONNECTED) {            
             //The call participant should be already removed from the call
             //see callParticipantRemoved
         }
-        else if(evt.getNewValue() == CallParticipantState.FAILED) {
+        else if(evt.getNewValue() == CallParticipantState.FAILED) {            
             //The call participant should be already removed from the call
             //see callParticipantRemoved
         }
-        else if(evt.getNewValue() == CallParticipantState.INCOMING_CALL) {
+        else if(evt.getNewValue() == CallParticipantState.INCOMING_CALL) {            
         }
-        else if(evt.getNewValue() == CallParticipantState.INITIATING_CALL) {
+        else if(evt.getNewValue() == CallParticipantState.INITIATING_CALL) {            
         }
-        else if(evt.getNewValue() == CallParticipantState.ON_HOLD) {
+        else if(evt.getNewValue() == CallParticipantState.ON_HOLD) {            
         }
-        else if(evt.getNewValue() == CallParticipantState.UNKNOWN) {
+        else if(evt.getNewValue() == CallParticipantState.UNKNOWN) {            
         }
     }
 
@@ -376,4 +376,9 @@ public void actionPerformed(ActionEvent e)
 
         }        
     }
+
+    public Iterator getParticipantsPanels()
+    {
+        return participantsPanels.values().iterator();
+    }
 }