diff --git a/Block Outgoing Calls/README.md b/Block Outgoing Calls/README.md
new file mode 100644
index 0000000..657904e
--- /dev/null
+++ b/Block Outgoing Calls/README.md	
@@ -0,0 +1,6 @@
+# Block Outgoing Calls
+
+Block certain numbers in a reject list from being called from the system. Show a message on screen instead.
+
+Open the macro in the macro editor and add more numbers to the list if you need to.
+
diff --git a/Block Outgoing Calls/block-outgoing.js b/Block Outgoing Calls/block-outgoing.js
new file mode 100644
index 0000000..99c3698
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+++ b/Block Outgoing Calls/block-outgoing.js	
@@ -0,0 +1,23 @@
+import xapi from 'xapi';
+
+// variable that can be changed from settings ui on roomos.cisco.com
+const NumberToBlock = 'macro.polo@cisco.com';
+
+const denyList = [
+  NumberToBlock,
+
+  // add more numbers like this if you need to:
+  // 'thedude@cisco.com',
+];
+
+xapi.Status.Call.on(e => {
+  const reject = denyList.some(number => number.toLowerCase().includes(e.RemoteNumber.toLowerCase()));
+  const outgoing = e.Direction === 'Outgoing';
+  if (outgoing && reject) {
+    xapi.Command.UserInterface.Message.Alert.Display({
+      Text: 'The number you called was not allowed by a user script on the device',
+      Duration: 10,
+    });
+    xapi.Command.Call.Disconnect();
+  }
+});
diff --git a/Block Outgoing Calls/manifest.json b/Block Outgoing Calls/manifest.json
new file mode 100644
index 0000000..f874150
--- /dev/null
+++ b/Block Outgoing Calls/manifest.json	
@@ -0,0 +1,25 @@
+{
+  "version": "1",
+  "profile": {
+    "macro": {
+      "items": [
+        {
+          "payload": "./block-outgoing.js",
+          "type": "url",
+          "id": "block-outgoing"
+        }
+      ]
+    },
+    "userParams": [
+      {
+        "id": "NumberToBlock",
+        "name": "Number to block",
+        "info": "Partial number is also ok",
+        "type": "string",
+        "default": "macro.polo@cisco.com",
+        "domain": "block-outgoing",
+        "required": true
+      }
+    ]
+  }
+}
diff --git a/README.md b/README.md
index 4d044f0..3251e8a 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Macros available:
 | AppleTV Control      | Add an Apple TV remote control to the touch 10. All communication is done directly via HDMI-CEC. No control system needed.      |
 | Audio Call Dial Pad | Ereate an in-room control application that adds a dedicated audio call dial pad to the Touch 10 |
 | Audio Safe Guard      | Enforce a maximum output volume on the device. Demostrates a simple macro using API statuses and commands     |
+| Block Outgoing Calls | Block certain numbers in a reject list from being called from the system. |
 | Big Red Button | Quick action such as muting with a connected USB device |
 | Camera Control with wide angle view      | Your custom camera control page, including creating a wide angle view of two cameras and controlling both simultaneously.      |
 | Conditional Autoanswer with Prompt      | Auto answer on incoming calls - but only for a select number of remote sites      |