diff --git a/src/components/structures/MatrixChat.js b/src/components/structures/MatrixChat.js
index b8903076c7..ff30bb1605 100644
--- a/src/components/structures/MatrixChat.js
+++ b/src/components/structures/MatrixChat.js
@@ -1370,6 +1370,37 @@ export default React.createClass({
                 call: call,
             }, true);
         });
+        cli.on('Call.noTURNServers', () => {
+            const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+            const code = sub => <code>{sub}</code>;
+            Modal.createTrackedDialog('No TURN servers', '', QuestionDialog, {
+                title: _t('Homeserver not configured to support calls'),
+                description: <div>
+                    <p>{ _t(
+                        "Your homeserver <code>%(homeserverDomain)s</code> is " +
+                        "currently not configured to assist with calls by offering a " +
+                        "TURN server, which means it is likely that voice and video " +
+                        "calls will fail. Please notify your homeserver administrator " +
+                        "so that they can address this.",
+                        { homeserverDomain: cli.getDomain() }, { code },
+                    ) }</p>
+                    <p>{ _t(
+                        "Riot can use a fallback server <code>turn.matrix.org</code> " +
+                        "for the current session if you urgently need to make a call. " +
+                        "Your IP address would be shared with this fallback server " +
+                        "only if you agree and later place or receive a call.",
+                        null, { code },
+                    )}</p>
+                </div>,
+                button: _t('Allow Fallback'),
+                cancelButton: _t('Dismiss'),
+                onFinished: (confirmed) => {
+                    if (confirmed) {
+                        cli.setFallbackICEServerAllowed(true);
+                    }
+                },
+            }, null, true);
+        });
         cli.on('Session.logged_out', function(errObj) {
             if (Lifecycle.isLoggingOut()) return;
 
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index 0ca1ece48f..ecfdc5642a 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -1507,6 +1507,10 @@
     "Failed to leave room": "Failed to leave room",
     "Can't leave Server Notices room": "Can't leave Server Notices room",
     "This room is used for important messages from the Homeserver, so you cannot leave it.": "This room is used for important messages from the Homeserver, so you cannot leave it.",
+    "Homeserver not configured to support calls": "Homeserver not configured to support calls",
+    "Your homeserver <code>%(homeserverDomain)s</code> is currently not configured to assist with calls by offering a TURN server, which means it is likely that voice and video calls will fail. Please notify your homeserver administrator so that they can address this.": "Your homeserver <code>%(homeserverDomain)s</code> is currently not configured to assist with calls by offering a TURN server, which means it is likely that voice and video calls will fail. Please notify your homeserver administrator so that they can address this.",
+    "Riot can use a fallback server <code>turn.matrix.org</code> for the current session if you urgently need to make a call. Your IP address would be shared with this fallback server only if you agree and later place or receive a call.": "Riot can use a fallback server <code>turn.matrix.org</code> for the current session if you urgently need to make a call. Your IP address would be shared with this fallback server only if you agree and later place or receive a call.",
+    "Allow Fallback": "Allow Fallback",
     "Signed Out": "Signed Out",
     "For security, this session has been signed out. Please sign in again.": "For security, this session has been signed out. Please sign in again.",
     "Terms and Conditions": "Terms and Conditions",