diff --git a/indra/newview/llpanelimcontrolpanel.cpp b/indra/newview/llpanelimcontrolpanel.cpp
index f9eeaf1e9e..b54975b76b 100644
--- a/indra/newview/llpanelimcontrolpanel.cpp
+++ b/indra/newview/llpanelimcontrolpanel.cpp
@@ -54,10 +54,16 @@ void LLPanelChatControlPanel::onEndCallButtonClicked()
 	gIMMgr->endCall(mSessionId);
 }
 
+void LLPanelChatControlPanel::onOpenVoiceControlsClicked()
+{
+	// TODO: implement Voice Control Panel opening
+}
+
 BOOL LLPanelChatControlPanel::postBuild()
 {
 	childSetAction("call_btn", boost::bind(&LLPanelChatControlPanel::onCallButtonClicked, this));
 	childSetAction("end_call_btn", boost::bind(&LLPanelChatControlPanel::onEndCallButtonClicked, this));
+	childSetAction("voice_ctrls_btn", boost::bind(&LLPanelChatControlPanel::onOpenVoiceControlsClicked, this));
 
 	return TRUE;
 }
@@ -73,8 +79,10 @@ void LLPanelChatControlPanel::draw()
 	LLVoiceChannel* voice_channel = session->mVoiceChannel;
 	if (voice_channel && voice_enabled)
 	{
-		childSetVisible("end_call_btn", voice_channel->getState() >= LLVoiceChannel::STATE_CALL_STARTED);
-		childSetVisible("call_btn", voice_channel->getState() < LLVoiceChannel::STATE_CALL_STARTED);
+		bool is_call_started = ( voice_channel->getState() >= LLVoiceChannel::STATE_CALL_STARTED );
+		childSetVisible("end_call_btn", is_call_started);
+		childSetVisible("voice_ctrls_btn", is_call_started);
+		childSetVisible("call_btn", ! is_call_started);
 	}
 
 	bool session_initialized = session->mSessionInitialized;
diff --git a/indra/newview/llpanelimcontrolpanel.h b/indra/newview/llpanelimcontrolpanel.h
index 220b7b14ba..d25f33935a 100644
--- a/indra/newview/llpanelimcontrolpanel.h
+++ b/indra/newview/llpanelimcontrolpanel.h
@@ -50,6 +50,7 @@ public:
 
 	void onCallButtonClicked();
 	void onEndCallButtonClicked();
+	void onOpenVoiceControlsClicked();
 
 	virtual void setSessionId(const LLUUID& session_id) { mSessionId = session_id; }
 
diff --git a/indra/newview/skins/default/xui/en/floater_im_session.xml b/indra/newview/skins/default/xui/en/floater_im_session.xml
index d9c3ff77d9..26d2f4e497 100644
--- a/indra/newview/skins/default/xui/en/floater_im_session.xml
+++ b/indra/newview/skins/default/xui/en/floater_im_session.xml
@@ -3,7 +3,7 @@
  legacy_header_height="18"
  background_visible="true"
  follows="left|top|right|bottom"
- height="250"
+ height="270"
  layout="topleft"
  left="0"
  name="panel_im"
@@ -17,7 +17,7 @@
  min_width="200"
  min_height="150">
   <layout_stack follows="left|top|right|bottom"
-                height="235"
+                height="255"
                 width="365"
                 layout="topleft"
                 orientation="horizontal"
@@ -29,11 +29,11 @@
       layout="topleft"
       top_delta="-3"
       width="146"
-      height="225"
+      height="255"
       follows="left"
       label="IM Control Panel"
       user_resize="false" />
-    <layout_panel height="235"
+    <layout_panel height="255"
                   width="200"
                   left_delta="146" 
                   top="0"
@@ -56,7 +56,7 @@
        length="1"
        follows="left|top|right|bottom"
        font="SansSerif"
-       height="185"
+       height="205"
        layout="topleft"
        name="chat_history"
        parse_highlights="true"
diff --git a/indra/newview/skins/default/xui/en/panel_adhoc_control_panel.xml b/indra/newview/skins/default/xui/en/panel_adhoc_control_panel.xml
index 1003b4a3a8..f50acc224f 100644
--- a/indra/newview/skins/default/xui/en/panel_adhoc_control_panel.xml
+++ b/indra/newview/skins/default/xui/en/panel_adhoc_control_panel.xml
@@ -20,12 +20,19 @@
     <button
      name="call_btn"
      label="Call"
-     width="90"
+     width="125"
      height="20" />
     <button
      name="end_call_btn"
      label="End Call"
-     width="90"
+     width="125"
      height="20" 
      visible="false"/>
+    <button
+     enabled="false"
+     name="voice_ctrls_btn"
+     label="Open Voice Controls"
+     width="125"
+     height="20"
+     visible="false"/>
 </panel>
diff --git a/indra/newview/skins/default/xui/en/panel_group_control_panel.xml b/indra/newview/skins/default/xui/en/panel_group_control_panel.xml
index ce952628c6..9ed510dff3 100644
--- a/indra/newview/skins/default/xui/en/panel_group_control_panel.xml
+++ b/indra/newview/skins/default/xui/en/panel_group_control_panel.xml
@@ -2,7 +2,7 @@
 <panel
  name="panel_im_control_panel"
  width="146"
- height="215"
+ height="238"
  border="false">
     <avatar_list
      color="DkGray2"
@@ -21,17 +21,24 @@
      name="group_info_btn"
      label="Group Info"
      left_delta="3"
-     width="90"
+     width="125"
      height="20" />
     <button
      name="call_btn"
      label="Call"
-     width="90"
+     width="125"
      height="20" />
     <button
      name="end_call_btn"
      label="End Call"
-     width="90"
+     width="125"
      height="20" 
      visible="false"/>
+    <button
+	 enabled="false"
+     name="voice_ctrls_btn"
+     label="Open Voice Controls"
+     width="125"
+     height="20"
+     visible="false"/>
 </panel>
diff --git a/indra/newview/skins/default/xui/en/panel_im_control_panel.xml b/indra/newview/skins/default/xui/en/panel_im_control_panel.xml
index dca52def49..c4cdaa41f9 100644
--- a/indra/newview/skins/default/xui/en/panel_im_control_panel.xml
+++ b/indra/newview/skins/default/xui/en/panel_im_control_panel.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 <panel name="panel_im_control_panel"
-       width="96"
-       height="225"
+       width="125"
+       height="248"
        border="false">
 
   <avatar_icon name="avatar_icon"
@@ -11,17 +11,17 @@
   <button name="view_profile_btn"
           label="View Profile"
           left_delta="3"
-          width="90"
+          width="125"
 		  height="20" />
 
   <button name="add_friend_btn"
           label="Add Friend"
-          width="90"
+          width="125"
           height="20" />
 
   <button name="call_btn"
           label="Call"
-          width="90"
+          width="125"
           height="20" />
 
     <button
@@ -29,11 +29,19 @@
      label="End Call"
      name="end_call_btn"
      visible="false"
-     width="90" />
+     width="125" />
+
+  <button
+	 enabled="false"
+     name="voice_ctrls_btn"
+     label="Open Voice Controls"
+     width="125"
+     height="20"
+     visible="false"/>
 
   <button name="share_btn"
           label="Share"
-          width="90"
+          width="125"
           height="20" />
 
 </panel>