1 files changed, 55 insertions, 0 deletions
diff --git a/java/gov/nist/javax/sip/DialogExt.java b/java/gov/nist/javax/sip/DialogExt.java
new file mode 100644
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--- /dev/null
+++ b/java/gov/nist/javax/sip/DialogExt.java
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+package gov.nist.javax.sip;
+
+import javax.sip.Dialog;
+import javax.sip.SipProvider;
+
+/**
+ * Extensions for Next specification revision. These interfaces will remain unchanged and be
+ * merged with the next revision of the spec.
+ * 
+ * 
+ * @author mranga
+ * 
+ */
+public interface DialogExt extends Dialog {
+
+    /**
+     * Returns the SipProvider that was used for the first transaction in this Dialog
+     * 
+     * @return SipProvider
+     * 
+     * @since 2.0
+     */
+    public SipProvider getSipProvider();
+
+    /**
+     * Sets a flag that indicates that this Dialog is part of a BackToBackUserAgent. If this flag
+     * is set, INVITEs are not allowed to interleave and timed out ACK transmission results in a
+     * BYE being sent to the other side. Setting this flag instructs the stack to automatically
+     * handle dialog errors. Once this flag is set for a dialog, it cannot be changed.
+     * This flag can be set on a stack-wide basis, on a per-provider basis or on a per Dialog basis.
+     * This flag must only be set at the time of Dialog creation. If the flag is set after the first
+     * request or response is seen by the Dialog, the behavior of this flag is undefined.
+     * 
+     * @since 2.0
+     */
+    public void setBackToBackUserAgent();
+    
+    
+    /**
+     * Turn off sequence number validation for this dialog. This passes all requests to the
+     * application layer including those that arrive out of order. This is good for testing
+     * purposes. Validation is delegated to the application and the stack will not attempt to
+     * block requests arriving out of sequence from reaching the application. In particular, the
+     * validation of CSeq and the ACK retransmission recognition are delegated to the application.
+     * Your application will be responsible for error handling of these cases.
+     * 
+     * @since 2.0
+     */
+    public void disableSequenceNumberValidation();
+
+  
+    
+    
+
+}