diff --git a/tests/test_twiml.py b/tests/test_twiml.py
index c413d91315..f132cfb5fd 100644
--- a/tests/test_twiml.py
+++ b/tests/test_twiml.py
@@ -411,6 +411,32 @@ def testDial(self):
         r = self.strip(r)
         self.assertEquals(r, '<?xml version="1.0" encoding="UTF-8"?><Response><Dial>1231231234</Dial></Response>')
 
+    def testSip(self):
+        """ should redirect the call"""
+        r = Response()
+        d = r.dial()
+        d.sip('foo@example.com')
+        r = self.strip(r)
+        self.assertEquals(r, '<?xml version="1.0" encoding="UTF-8"?><Response><Dial><Sip>foo@example.com</Sip></Dial></Response>')
+
+    def testSipUsernamePass(self):
+        """ should redirect the call"""
+        r = Response()
+        d = r.dial()
+        d.sip('foo@example.com', username='foo', password='bar')
+        r = self.strip(r)
+        self.assertEquals(r, '<?xml version="1.0" encoding="UTF-8"?><Response><Dial><Sip password="bar" username="foo">foo@example.com</Sip></Dial></Response>')
+
+
+    def testSipUri(self):
+        """ should redirect the call"""
+        r = Response()
+        d = r.dial()
+        s = d.sip()
+        s.uri('foo@example.com')
+        r = self.strip(r)
+        self.assertEquals(r, '<?xml version="1.0" encoding="UTF-8"?><Response><Dial><Sip><Uri>foo@example.com</Uri></Sip></Dial></Response>')
+
     def testConvienceMethod(self):
         """ should dial to a url via post"""
         r = Response()
diff --git a/twilio/twiml.py b/twilio/twiml.py
index 2cf9248f5d..1c8396991c 100644
--- a/twilio/twiml.py
+++ b/twilio/twiml.py
@@ -3,8 +3,7 @@
 """
 
 import xml.etree.ElementTree as ET
-from six import u
-
+from six import iteritems
 
 class TwimlException(Exception):
     pass
@@ -390,7 +389,7 @@ class Dial(Verb):
     """
     GET = 'GET'
     POST = 'POST'
-    nestables = ['Number', 'Conference', 'Client', 'Queue']
+    nestables = ['Number', 'Conference', 'Client', 'Queue', 'Sip']
 
     def __init__(self, number=None, **kwargs):
         super(Dial, self).__init__(**kwargs)
@@ -412,6 +411,9 @@ def conference(self, name, **kwargs):
     def queue(self, name, **kwargs):
         return self.append(Queue(name, **kwargs))
 
+    def sip(self, sip_address=None, **kwargs):
+        return self.append(Sip(sip_address, **kwargs))
+
     def addNumber(self, *args, **kwargs):
         return self.number(*args, **kwargs)
 
@@ -472,3 +474,31 @@ class Record(Verb):
     """
     GET = 'GET'
     POST = 'POST'
+
+
+class Sip(Verb):
+    """Dial out to a SIP endpoint
+
+    :param url: call screening URL none
+    :param method: call screening method POST
+    :param username: Username for SIP authentication
+    :param password: Password for SIP authentication
+    """
+    nestables = ['Headers', 'Uri']
+
+    def __init__(self, sip_address=None, **kwargs):
+        super(Sip, self).__init__(**kwargs)
+        if sip_address:
+            self.body = sip_address
+
+    def uri(self, uri, **kwargs):
+        return self.append(Uri(uri, **kwargs))
+
+
+class Uri(Verb):
+    """A uniform resource indentifier"""
+    def __init__(self, uri, **kwargs):
+        super(Uri, self).__init__(**kwargs)
+        self.body = uri
+
+