diff --git a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/IceUdpTransportPacketExtension.java b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/IceUdpTransportPacketExtension.java
index da258141a..3ebb57671 100644
--- a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/IceUdpTransportPacketExtension.java
+++ b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/IceUdpTransportPacketExtension.java
@@ -235,4 +235,21 @@ else if(childExtension instanceof CandidatePacketExtension)
         else
             super.addChildExtension(childExtension);
     }
+
+    /**
+     * Checks whether an 'rtcp-mux' extension has been added to this
+     * <tt>IceUdpTransportPacketExtension</tt>.
+     * @return <tt>true</tt> if this <tt>IceUdpTransportPacketExtension</tt>
+     * has a child with the 'rtcp-mux' name.
+     */
+    public boolean isRtcpMux()
+    {
+        for (PacketExtension packetExtension : getChildExtensions())
+        {
+            if (RtcpmuxPacketExtension.ELEMENT_NAME
+                    .equals(packetExtension.getElementName()))
+                return true;
+        }
+        return false;
+    }
 }
diff --git a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/JingleIQProvider.java b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/JingleIQProvider.java
index 4cefe8f02..bc46b8f3e 100644
--- a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/JingleIQProvider.java
+++ b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/JingleIQProvider.java
@@ -156,6 +156,13 @@ public JingleIQProvider()
                 ConferenceDescriptionPacketExtension.NAMESPACE,
                 new DefaultPacketExtensionProvider<CallIdPacketExtension>(
                         CallIdPacketExtension.class));
+
+        //rtcp-mux
+        providerManager.addExtensionProvider(
+                RtcpmuxPacketExtension.ELEMENT_NAME,
+                IceUdpTransportPacketExtension.NAMESPACE,
+                new DefaultPacketExtensionProvider<RtcpmuxPacketExtension>(
+                        RtcpmuxPacketExtension.class));
     }
 
     /**
diff --git a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/RtcpmuxPacketExtension.java b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/RtcpmuxPacketExtension.java
new file mode 100644
index 000000000..21577ee63
--- /dev/null
+++ b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/RtcpmuxPacketExtension.java
@@ -0,0 +1,31 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.impl.protocol.jabber.extensions.jingle;
+
+import net.java.sip.communicator.impl.protocol.jabber.extensions.*;
+
+/**
+ * An 'rtcp-mux' extension.
+ * @author Boris Grozev
+ */
+public class RtcpmuxPacketExtension
+        extends AbstractPacketExtension
+{
+    /**
+     * The name of the "encryption" element.
+     */
+    public static final String ELEMENT_NAME = "rtcp-mux";
+
+    /**
+     * Creates a new instance of <tt>RtcpmuxPacketExtension</tt>.
+     */
+    public RtcpmuxPacketExtension()
+    {
+        super(null, ELEMENT_NAME);
+    }
+}
+