diff --git a/CallAutomation_AppointmentBooking/.gitignore.txt b/CallAutomation_AppointmentBooking/.gitignore.txt
new file mode 100644
index 00000000..0b93ac33
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/.gitignore.txt
@@ -0,0 +1,29 @@
+# Ignore node_modules directory
+node_modules/
+
+# Ignore environment variables file
+.env
+
+# Ignore build output directory
+dist/
+build/
+public/assets/
+
+# Ignore IDE/Editor-specific files
+.vscode/
+.idea/
+
+# Ignore user-specific configuration files
+.npmrc
+.gitconfig
+
+# Ignore log files
+*.log
+
+# Ignore OS-generated files
+.DS_Store
+Thumbs.db
+
+# Ignore package lock files
+package-lock.json
+yarn.lock
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/package-lock.json b/CallAutomation_AppointmentBooking/package-lock.json
new file mode 100644
index 00000000..e73ac361
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/package-lock.json
@@ -0,0 +1,1614 @@
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diff --git a/CallAutomation_AppointmentBooking/package.json b/CallAutomation_AppointmentBooking/package.json
new file mode 100644
index 00000000..be999d0d
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "callautomation_appointmentreminder",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "build": "tsc",
+    "dev": "nodemon ./src/app.ts"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^16.0.3",
+    "express": "^4.18.2"
+  },
+  "devDependencies": {
+    "@azure/communication-call-automation": "^1.0.0-alpha.20230517.2",
+    "@azure/communication-common": "^2.2.0",
+    "@azure/eventgrid": "^4.12.0",
+    "@types/express": "^4.17.17",
+    "@types/node": "^20.2.1",
+    "nodemon": "^2.0.22",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.0.4"
+  }
+}
diff --git a/CallAutomation_AppointmentBooking/src/app.ts b/CallAutomation_AppointmentBooking/src/app.ts
new file mode 100644
index 00000000..070e6a28
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/app.ts
@@ -0,0 +1,26 @@
+import express from 'express';
+import { config } from 'dotenv';
+import { incomingCallController } from './controllers/incomingCallController';
+import { ongoingCallController } from './controllers/ongoingCallController';
+import { mediaController } from './controllers/mediaController';
+import { CallState } from './enum/callState'
+import { callContext } from './models/callContext';
+
+// Create Express server
+const app = express();
+app.use(express.urlencoded({ extended: true }));
+app.use(express.json())
+config();
+
+// Available routes
+app.post('/incomingcall', incomingCallController);
+app.post('/ongoingcall', ongoingCallController)
+app.get('/audioprompt/:filename', mediaController)
+
+// Start the server
+const PORT = process.env.PORT;
+
+app.listen(PORT, () => {
+  console.log(`Server is listening on port ${PORT}`);
+  callContext.setCallState(CallState.Idle)
+});
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/controllers/incomingCallController.ts b/CallAutomation_AppointmentBooking/src/controllers/incomingCallController.ts
new file mode 100644
index 00000000..f45bf100
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/controllers/incomingCallController.ts
@@ -0,0 +1,43 @@
+import express from 'express';
+import { callContext } from '../models/callContext';
+import { acsClientService } from '../services/acsClientService';
+
+// Create a new router instance
+const incomingCallController = express.Router();
+
+// Define the POST route to handle IncomingCall events
+incomingCallController.post("/incomingcall", async (req, res) => {
+    try {
+        const event = req.body[0];
+        var eventData = event.data;
+
+        // Handle subscription validation event
+        if (event.eventType === "Microsoft.EventGrid.SubscriptionValidationEvent") {
+            console.log("Received SubscriptionValidation event");
+            res.status(200).json({
+                validationResponse: event.data.validationCode
+            });
+        }
+        else {
+            const targetParticipant = {
+                rawId: eventData.from.rawId,
+                phoneNumber: eventData.from.phoneNumber.value
+            }
+
+            // Set the target participant in the call context
+            callContext.setTargetParticipant(targetParticipant);
+            
+            // Create the ACS client and answer the incoming call
+            await acsClientService.createClient(process.env.CONNECTION_STRING);
+            await callContext.acsClient.answerCall(eventData.incomingCallContext, process.env.CALLBACK_URI);
+
+            res.sendStatus(200);
+        }
+    } catch (error) {
+        console.error("Error handling incoming call:", error);
+        res.sendStatus(500);
+    }
+});
+
+// Export the router
+export { incomingCallController };
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/controllers/mediaController.ts b/CallAutomation_AppointmentBooking/src/controllers/mediaController.ts
new file mode 100644
index 00000000..8ceca2d2
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/controllers/mediaController.ts
@@ -0,0 +1,32 @@
+import express from 'express';
+import path from 'path';
+import fs from "fs";
+
+
+const mediaController = express.Router();
+
+// Define the GET route to serve the audio file
+mediaController.get("/audioprompt/:filename", (req, res) => {
+    const filename = req.params.filename;
+    const audioFilePath = path.join(process.env.BASE_MEDIA_PATH, filename);
+
+    // Read the audio file
+    fs.readFile(audioFilePath, (err, data) => {
+        if (err) {
+            console.error("Failed to read audio file:", err);
+            res.status(500).send("Internal Server Error");
+            return;
+        }
+
+        // Set the appropriate response headers
+        res.set("Content-Type", "audio/wav");
+        res.set("Content-Length", data.length.toString());
+        res.set("Cache-Control", "no-cache, no-store");
+        res.set("Pragma", "no-cache");
+
+        // Send the audio file as the response
+        res.send(data);
+    });
+});
+
+export { mediaController };
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/controllers/ongoingCallController.ts b/CallAutomation_AppointmentBooking/src/controllers/ongoingCallController.ts
new file mode 100644
index 00000000..ffdd965d
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/controllers/ongoingCallController.ts
@@ -0,0 +1,13 @@
+import express from 'express';
+import { bookingService } from '../services/bookingService';
+
+const ongoingCallController = express.Router();
+
+// Define the POST route to handle OngoingCall events
+ongoingCallController.post("/ongoingcall", async (req, res) => {
+    res.sendStatus(200);
+    var event = req.body[0];
+    bookingService.topLevelMenu(event);
+});
+
+export { ongoingCallController };
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/enum/callState.ts b/CallAutomation_AppointmentBooking/src/enum/callState.ts
new file mode 100644
index 00000000..11ecd518
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/enum/callState.ts
@@ -0,0 +1,7 @@
+//Enum describing the various states of a given call
+export enum CallState {
+    Idle, 
+    CallInProgress, 
+    Retrying, 
+    TerminateCall 
+}
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/models/callContext.ts b/CallAutomation_AppointmentBooking/src/models/callContext.ts
new file mode 100644
index 00000000..aa024065
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/models/callContext.ts
@@ -0,0 +1,81 @@
+import { CallAutomationClient, CallConnection } from "@azure/communication-call-automation"
+import { CommunicationIdentifier } from "@azure/communication-common"
+import { CallState } from "../enum/callState"
+
+/**
+ * Represents the context of a call, including call connection details, participant information, and call state.
+ * Provides methods to set and retrieve various properties related to the call.
+ */
+class CallContext {
+
+    callConnectionId: string
+    recordingId: string
+    serverCallId: string
+    retryCounter: number
+    callConnection: CallConnection
+    targetParticipant: CommunicationIdentifier
+    acsClient: CallAutomationClient 
+    callState: CallState
+
+    constructor() {
+      // Initialize properties
+      this.callConnectionId = '';
+      this.recordingId = '';
+      this.serverCallId = '';
+      this.retryCounter = 0;
+      this.callConnection = null;
+      this.targetParticipant = null;
+      this.acsClient = null;
+      this.callState = null;
+    }
+
+    // Setter methods for individual properties
+  
+    setCallConnectionId(callConnectionId: string) {
+      this.callConnectionId = callConnectionId;
+    }
+  
+    setRecordingId(recordingId: string) {
+      this.recordingId = recordingId;
+    }
+  
+    setServerCallId(serverCallId: string) {
+        this.serverCallId = serverCallId;
+    }
+
+    setRetryCounter(retryCounter: number) {
+        this.retryCounter = retryCounter;
+    }
+
+    setCallConnection(callConnection: CallConnection) {
+      this.callConnection = callConnection;
+    }
+  
+    setTargetParticipant(targetParticipant: CommunicationIdentifier) {
+      this.targetParticipant = targetParticipant;
+    }
+  
+    setAcsClient(acsClient: CallAutomationClient) {
+      this.acsClient = acsClient;
+    }
+  
+    setCallState(callState: CallState) {
+      this.callState = callState;
+    }
+
+    cleanup() {
+        // Reset properties to initial values
+        this.callConnectionId = '';
+        this.recordingId = '';
+        this.serverCallId = '';
+        this.retryCounter = 0;
+        this.callConnection = null;
+        this.targetParticipant = null;
+        this.acsClient = null;
+        this.callState = null;
+    }
+  }
+  
+// Create a single instance of CallContext to be shared across modules
+export const callContext = new CallContext();
+  
diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE1.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE1.wav
new file mode 100644
index 00000000..3f10514c
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diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE2.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE2.wav
new file mode 100644
index 00000000..2f83bb64
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diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE3.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_CHOICE3.wav
new file mode 100644
index 00000000..943cd8ab
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diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_GOODBYE.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_GOODBYE.wav
new file mode 100644
index 00000000..f7642f78
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diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_MAIN_MENU.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_MAIN_MENU.wav
new file mode 100644
index 00000000..ca5e7983
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diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_PLAY_RECORDING_STARTED.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_PLAY_RECORDING_STARTED.wav
new file mode 100644
index 00000000..0f1d6c86
Binary files /dev/null and b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_PLAY_RECORDING_STARTED.wav differ
diff --git a/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_RETRY.wav b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_RETRY.wav
new file mode 100644
index 00000000..0c7b706d
Binary files /dev/null and b/CallAutomation_AppointmentBooking/src/resources/media_prompts/PROMPT_RETRY.wav differ
diff --git a/CallAutomation_AppointmentBooking/src/services/acsClientService.ts b/CallAutomation_AppointmentBooking/src/services/acsClientService.ts
new file mode 100644
index 00000000..e1bd6872
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/services/acsClientService.ts
@@ -0,0 +1,24 @@
+import { CallAutomationClient } from "@azure/communication-call-automation";
+import { callContext } from "../models/callContext";
+
+class AcsClientService {
+
+  client: CallAutomationClient
+  
+  constructor() {
+    this.client = null;
+  }
+
+  // Method to create the ACS client and set it in the call context
+  async createClient(connectionString: string) {
+    this.client = new CallAutomationClient(connectionString);
+    callContext.setAcsClient(this.client)
+  }
+
+  // Method to get the ACS client
+  getClient() {
+    return this.client;
+  }
+}
+
+export const acsClientService = new AcsClientService();
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/services/bookingService.ts b/CallAutomation_AppointmentBooking/src/services/bookingService.ts
new file mode 100644
index 00000000..7e6a073d
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/services/bookingService.ts
@@ -0,0 +1,78 @@
+import { CallState } from '../enum/callState'
+import { callContext } from '../models/callContext';
+import { callAutomationService } from './callAutomationService';
+
+/**
+ * Handles the logic and actions related to the booking service during a call.
+ */
+class BookingService {
+
+    // Method to handle the various events sent by ACS
+    async topLevelMenu(event) {
+        const eventData = event.data
+
+        if (event.type == "Microsoft.Communication.CallConnected") {
+            console.log("Received CallConnected event");
+
+            // Extract relevant data for the context of the call
+            callContext.setCallState(CallState.CallInProgress);
+            callContext.setCallConnectionId(eventData.callConnectionId);
+            callContext.setServerCallId(eventData.serverCallId);
+            callContext.setCallConnection(callContext.acsClient.getCallConnection(eventData.callConnectionId));
+
+            // Start recording and play the welcome prompt
+            await callAutomationService.startRecording()
+            await callAutomationService.playAudio("PROMPT_PLAY_RECORDING_STARTED.wav");
+        }
+        else if (event.type == "Microsoft.Communication.ParticipantsUpdated") {
+            console.log("Received ParticipantUpdated event");
+        }
+        else if (event.type == "Microsoft.Communication.PlayCompleted") {
+            console.log("Received PlayCompleted event");
+
+            // Based on the state of the call either hangup or start tone recognition
+            if (callContext.callState == CallState.TerminateCall) {
+                callAutomationService.hangUpCall()
+            }
+            else {
+                await callAutomationService.startToneRecognition()
+            }
+        }
+        else if (event.type == "Microsoft.Communication.RecognizeCompleted") {
+            const tone = event.data.collectTonesResult.tones[0]
+            console.log("Received RecognizeCompleted event, with following tone: " + tone);
+            callContext.setCallState(CallState.TerminateCall);
+
+            // Process and handle the received tone input
+            switch (tone) {
+                case "one":
+                    await callAutomationService.playAudio("PROMPT_CHOICE1.wav")
+                    break;
+                case "two":
+                    await callAutomationService.playAudio("PROMPT_CHOICE2.wav")
+                    break;
+                case "three":
+                    await callAutomationService.playAudio("PROMPT_CHOICE3.wav")
+                    break;
+                default:
+                    if (callContext.retryCounter == 3)
+                        await callAutomationService.playAudio("PROMPT_GOODBYE.wav")
+                    else {
+                        callContext.setRetryCounter(callContext.retryCounter + 1);
+                        callContext.setCallState(CallState.Retrying);
+                        callAutomationService.startToneRecognition()
+                    }
+            }
+        }
+        else if (event.type == "Microsoft.Communication.CallDisconnected") {
+            console.log("Received CallDisonnected event");
+        }
+        else {
+            const eventType = event.type;
+            console.log("Received Unexpected event: " + eventType + ". Terminating Call.");
+            callAutomationService.hangUpCall();
+        }
+    }
+}
+
+export const bookingService = new BookingService();
\ No newline at end of file
diff --git a/CallAutomation_AppointmentBooking/src/services/callAutomationService.ts b/CallAutomation_AppointmentBooking/src/services/callAutomationService.ts
new file mode 100644
index 00000000..117e98b4
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/src/services/callAutomationService.ts
@@ -0,0 +1,81 @@
+import { CallLocator, StartRecordingOptions, FileSource, CallMediaRecognizeDtmfOptions } from '@azure/communication-call-automation';
+import { CallState } from '../enum/callState'
+import { callContext } from '../models/callContext';
+
+/**
+ * This service interacts with the Azure Communication
+ * Call Automation SDK to execute call actions and manage the call flow.
+ */
+class CallAutomationService {
+
+  // Method to start call recording
+  async startRecording() {
+    try {
+      const callLocator: CallLocator = {
+        id: callContext.serverCallId,
+        kind: 'serverCallLocator',
+      };
+
+      const recordingOptions: StartRecordingOptions = {
+        callLocator: callLocator,
+      };
+
+      const response = await callContext.acsClient.getCallRecording().start(recordingOptions);
+      callContext.recordingId = response.recordingId;
+    } catch (error) {
+      console.error('Error starting recording:', error);
+      throw error;
+    }
+  }
+
+  // Method to play audio prompt
+  async playAudio(prompt: string) {
+    try {
+      const audioPrompt: FileSource = {
+          url: process.env.MEDIA_CALLBACK_URI + prompt,
+          kind: 'fileSource'
+      };
+
+      if (callContext.callState !== CallState.TerminateCall) {
+        callContext.callState = CallState.CallInProgress;
+      }
+
+      await callContext.callConnection.getCallMedia().playToAll(audioPrompt);
+    } catch (error) {
+      console.error('An error occurred while playing audio prompt:', error);
+    }
+  }
+
+  // Method to start tone recognition
+  async startToneRecognition() {
+    try {
+      const audioPrompt: FileSource = {
+          url: callContext.callState !== CallState.Retrying
+              ? process.env.MEDIA_CALLBACK_URI + 'PROMPT_MAIN_MENU.wav'
+              : process.env.MEDIA_CALLBACK_URI + 'PROMPT_RETRY.wav',
+          kind: 'fileSource'
+      };
+
+      const recognizeOptions: CallMediaRecognizeDtmfOptions = {
+          playPrompt: audioPrompt,
+          kind: 'callMediaRecognizeDtmfOptions'
+      };
+
+      callContext.callState = CallState.CallInProgress;
+
+      await callContext.callConnection.getCallMedia().startRecognizing(callContext.targetParticipant, 1, recognizeOptions);
+    } catch (error) {
+      console.error('Error starting tone recognition:', error);
+      throw error;
+    }
+  }
+
+  // Method to hang up the call
+  async hangUpCall() {
+    await callContext.acsClient.getCallRecording().stop(callContext.recordingId);
+    callContext.callConnection.hangUp(true);
+    callContext.cleanup();
+  }
+}
+
+export const callAutomationService = new CallAutomationService();
diff --git a/CallAutomation_AppointmentBooking/tsconfig.json b/CallAutomation_AppointmentBooking/tsconfig.json
new file mode 100644
index 00000000..c67252ac
--- /dev/null
+++ b/CallAutomation_AppointmentBooking/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+      "target": "ES2015",
+      "module": "commonjs",
+      "outDir": "./dist",
+      "rootDir": "./src",
+      "moduleResolution": "node",
+      "esModuleInterop": true,
+      "skipLibCheck": true,
+      "forceConsistentCasingInFileNames": true
+  },
+  "include": ["./src"]
+}
\ No newline at end of file