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Twilio Contact Center Demo

Essence of a modern contact center is to serve customers on multiple channels (voice, web chat, video, email, social media, etc.), allow them to move seamlessly across channels and most importantly maintain context of the conversations.

The Twilio Contact Center demo is reference architecture for building a modern contact center. The focus of the demo is to show how to build a Twilio platform based contact center and the various backend and frontend components needed.

Twilio Contact Center

Note: We have done the basic work from an UX perspective and lot of opportunities remains to improve on it. It has been designed for demo purposes and has not been separately security checked.

This application is provided as-is. Twilio does not officially support it.

Features

  • Twilio Phone Numbers
  • Twilio Programmable Voice (PSTN, Twilio WebRTC Client)
  • Twilio Programmable Chat
  • Twilio Programmable SMS and Facebook Messenger
  • Twilio Programmable Video
  • Twilio TaskRouter
  • Twilio REST APIs

Customer Journey Flows:

Callback Voice Calling (PSTN):

Customer fills out online call request -> Form submitted to server -> Task on TaskRouter created -> Find available and matching agent -> Agent accepts reservation and dials customer out (PSTN) -> Connect customer to agent (WebRTC)

Customer Journey Call Back over PSTN

Inbound Voice Calling (PSTN):

Customer calls Twilio phone number -> Twilio requests webhook -> Server generates TwiML for IVR -> Caller selects IVR option -> Task on TaskRouter created -> Find available and matching agent -> Agent accepts reservation -> Connect customer to agent (WebRTC)

Customer Journey Inbound Call

Web Chat:

Customer fills out online web chat request form -> Form submitted to server -> Task on TaskRouter created -> Find available and matching agent -> Agent accepts reservation -> Start chat between customer and agent

Customer Journey Chat

Video Call:

Customer fills out video call request form -> Form submitted to server -> Task on TaskRouter and video room created -> Find available and matching agent -> Agent accepts reservation -> Agent joins video room

Customer Journey Video

Real-time TaskRouter Events Dashboard:

Real-time display of operational contact center metrics (for example: average call handle time, agent productivity, call metrics, TaskRouter stats, and more etc.). Please check out the following repo: https://github.com/ameerbadri/twilio-taskrouter-realtime-dashboard

Pre-requisites:

Installation

If you haven't used Twilio before, welcome! You'll need to Sign up for a Twilio account.

We recommend you create a separate project within Twilio and install this app using that project.

Note: It is recommended that you have an upgraded Twilio account to fully experience this demo.

Configuration Variables

Before you start the install, you’ll need to collect the following variables from the Twilio Account Portal.

  • TWILIO_ACCOUNT_SID
  • TWILIO_AUTH_TOKEN
  • TWILIO_WORKSPACE_SID
  • TWILIO_API_KEY_SID
  • TWILIO_API_KEY_SECRET

For web chat you need to set Twilio Programmable Chat environment variables:

  • TWILIO_CHAT_SERVICE_SID

The agent UI does not support handling of multiple tasks simultaneously, hence all tasks are routed on the same task channel with capacity of one simultaneous task. For more details please check TaskRouter Multitasking

Terraform Install - Heroku

You can deploy this project with all depencendies on Heroku with Terraform, an open-source infrastructure as code software tool.

Create the API key for Heroku, check the Heroku Platform API Guide for help.

Add the Heroku API key and your email address to terraform.tfvars.

Initialize the Terraform configuration files and run

terraform init

If you have not installed Terraform, follow the Terraform Getting Started.

Add the Twilio variables listed in section Configuration Variables to the terraform.tfvars variables file.

Set your Heroku application name in the infrastructure description file terraform_heroku.tf

Create an execution plan

terraform plan

Install the project on Heroku by executing

terraform apply

After the installation has completed please open https://<your-application-name>.herokuapp.com/setup and configure the application. The demo overview will be accessible at https://<your-application-name>.herokuapp.com.

One Click Install - Heroku

This will install the application and all the dependencies on Heroku (login required) for you. As part of the installation, the Heroku app will walk you through configuration of environment variables. Please click on the following button to deploy the application.

Deploy

After the installation has completed please open https://<your-application-name>.herokuapp.com/setup and configure the application. The demo overview will be accessible at https://<your-application-name>.herokuapp.com.

Google App Engine Installation

Download and install the Google Cloud SDK.

Create a new project

gcloud projects create <your-project-id> --set-as-default

Initialize your App Engine app with your project and choose its region:

gcloud app create --project=<your-project-id>

Add the Twilio variables listed in section Configuration Variables to the app.yaml variables file.

Deploy the app on App Engine by running the following command.

gcloud app deploy

To view your application run

gcloud app browse

After the installation has completed please open https://<your-project-id>.appspot.com/setup and configure the application. The demo overview will be accessible at https://<your-project-id>.appspot.com.

Manual Install - On Your Own Server

Fork and clone the repository. Then, install dependencies with

npm install

If you want to load environment variables from a file, install dotenv package to handle local environment variables.

npm install dotenv

In the root directory create a file called '.env', then add the following to top of app.js

require('dotenv').config()

In order to run the demo you will need to set the environment variables liste in Configuration Variables](#configuration-variables)

Start the application

npm start

Before you can use the demo please open http://<your-application-name>/setup and configure the application. The demo overview will be accessible at http://<your-application-name>. Please note, if process.env.PORT is not set the applications runs on port 5000.

If you are running the demo locally please remember that Twilio needs a publically-accessible address for webhooks, and the setup process registers these with Twilio. As such, you'll need to run something like ngrok instead of just hitting http://localhost:5000/. As you get new addresses from ngrok you'll need to also rerun the setup process to register the updated address with Twilio.

ngrok Setup

  • System Wide Install

  • Project Only Install

    • Install ngrok package

      npm install ngrok --dev

    • Add the following to the top of app.js

      const ngrok = require('ngrok')
      
      const ngrokUrl = async function () {
       	const url = await ngrok.connect((process.env.PORT || 5000))
       	console.log('ngrok url ->', url)
      }
       
      
    • In app.js call ngrokUrl in app.listen to log the ngrok url on server spin up

      ngrokUrl()

Note: On Google Chrome a secure HTTPS connection is required to do phone calls via WebRTC. Use a tunnel that supports HTTPS such as ngrok, which can forward the traffic to your webserver.

Contributions

Contributions are welcome and generally accepted. For not trivial amendments it is a good idea to submit an issue explaining the proposed changes before a PR. This allows the maintainers to give guidance and avoid you doing duplicated work.

Your changes must adhere a common project code style.

# please run this before "git commit"
npm run lint
# try automatic fix
./node_modules/.bin/eslint controllers --fix
./node_modules/.bin/eslint public --fix

To make life easier for other contributors and reviewer please rebase your commit in the same PR

git rebase -i HEAD^^^^^^
# then squash or fixup your shards
# and force push into your fork
git push origin [YOUR BRANCH] -f

License

MIT

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Signal 2017 Modern Contact Center

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