diff --git a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/SourceGroupPacketExtension.java b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/SourceGroupPacketExtension.java
index e744cdeb3..9b540025a 100644
--- a/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/SourceGroupPacketExtension.java
+++ b/src/net/java/sip/communicator/impl/protocol/jabber/extensions/jingle/SourceGroupPacketExtension.java
@@ -54,6 +54,14 @@ public String getSemantics()
         return getAttributeAsString(SEMANTICS_ATTR_NAME);
     }
 
+    /**
+     * Sets the semantics of this source group.
+     */
+    public void setSemantics(String semantics)
+    {
+        this.setAttribute(SEMANTICS_ATTR_NAME, semantics);
+    }
+
     /**
      * Gets the sources of this source group.
      *
@@ -63,4 +71,19 @@ public List<SourcePacketExtension> getSources()
     {
         return getChildExtensionsOfType(SourcePacketExtension.class);
     }
+
+    /**
+     * Sets the sources of this source group.
+     *
+     * @param sources the sources of this source group.
+     */
+    public void addSources(List<SourcePacketExtension> sources)
+    {
+        if (sources != null && sources.size() != 0)
+        {
+            for (SourcePacketExtension source : sources)
+                this.addChildExtension(source);
+        }
+
+    }
 }