diff --git a/synapse/rest/voip.py b/synapse/rest/voip.py
new file mode 100644
index 0000000000..cba9b27e3b
--- /dev/null
+++ b/synapse/rest/voip.py
@@ -0,0 +1,59 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from twisted.internet import defer
+
+from base import RestServlet, client_path_pattern
+
+from syutil.base64util import encode_base64
+
+import hmac
+import hashlib
+
+
+class VoipRestServlet(RestServlet):
+ PATTERN = client_path_pattern("/voip/turnuris$")
+
+ @defer.inlineCallbacks
+ def on_GET(self, request):
+ auth_user = yield self.auth.get_user_by_req(request)
+
+ turnUri = self.hs.config.voip.turn_uri
+ turnSecret = self.hs.config.voip.turn_shared_secret
+ userLifetime = self.hs.config.voip.turn_user_lifetime
+ if not turnUri or not turnSecret or not userLifetime:
+ defer.returnValue( (200, {"uris": []}) )
+
+ expiry = self.hs.get_clock().time_msec() + userLifetime
+ username = "%d:%s" % (expiry, auth_user.to_string())
+
+ mac = hmac.new(turnSecret, msg=username, digestmod=hashlib.sha1)
+ password = encode_base64(mac.digest())
+
+ defer.returnValue( (200, {
+ 'username': username,
+ 'password': password,
+ 'ttl': userLifetime / 1000,
+ 'uris': [
+ turnUri,
+ ]
+ }) )
+
+ def on_OPTIONS(self, request):
+ return (200, {})
+
+
+def register_servlets(hs, http_server):
+ VoipRestServlet(hs).register(http_server)
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