---
title: "November 19th RealTimeWeekly #256"
description: Welcome to Real Time Weekly! This week we've got new tutorials and articles about WebRTC and Realtime development. In addition, check out the recently open sourced TURN server from Xirsys, and the new features included in the latest release of OpenTok v2.15!
---

[WebRTC.ventures Blog](https://blog.webrtc.ventures)

# [November 19th RealTimeWeekly #256](https://blog.webrtc.ventures/2018/11/november-19th-realtimeweekly-256)

 Written by [Germán Goldenstein](https://blog.webrtc.ventures/author/germán-goldenstein) | Nov 19, 2018 5:00:00 AM

## **Real Time Weekly #256: November 19, 2018**

| Welcome to Real Time Weekly! Hello everyone! This week we’ve got new tutorials and articles about WebRTC and Realtime development. In addition, check out the recently open sourced TURN server from Xirsys, and the new features included in the latest release of OpenTok v2.15! Your feedback is always welcome! So you can write me to share content, propose new topics, or just to say hello! Thanks for Reading! @germangol Editor Saying Happy Birthday to my Grandma with #TwilioIoT Twilio Nov 5 Nice tutorial of how to build a hardware device based on Arduino that uses a Twilio Programmable Wireless SIM to trigger a phone call.   Build a chat app in Flask and VUE with Sentiment Analysis – Part 1: Setting up the project Pusher Nov 8 The first part of this tutorial of how to build a one-to-one private chat with sentiment analysis using Pusher Channels, Vue.js and Flask.   OpenTok version 2.15: What’s new and how you can use it TokBox Nov 9 Check out all the new features and bug fixes in the new OpenTok version 2.15 Web and Mobile SDKs. Improving Scale and Media Quality with Cascading SFUs Webrtchacks Nov 12 Learn how the Jitsi team scales WebRTC media servers and optimizes the latency using Cascading SFUs.   Xirsys Releases XTurn — The Open Source TURN Server in Elixir Xirsys Nov 12 Xirys has open sourced its XTurn server, written in Elixir!   How to Build a Vue Customer Service Chat App (ie. an Intercom.io Alternative) PubNub Nov 12 A tutorial of how to build a customer service chat app in Vue.JS using PubNub Functions.   Enhancing PyCascades Code of Conduct Hotline with Nexmo Voice API Nexmo Nov 15 How to build a Hotline with Nexmo Voice API where the caller will be connected to the first person who responds. Upcoming Events  Do you have a real-time related conference coming up? Tell us about it! Email german@webrtc.ventures to be included in this listing. AWS re: Invent conference November 26 – 30, 2018 #ITEXPO Exhibitor Highlight  January 29 – February 1, 2019 If you know about any events worldwide please let us know emailing german@webrtc.ventures.  Real Time Weekly is a free service of WebRTC.ventures. If you have been forwarded this by a friend, then please sign up at RealTimeWeekly so you never miss an issue! Please send tips or suggestions to German Goldenstein, editor,  german@webrtc.ventures.  |
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[View full post](https://blog.webrtc.ventures/2018/11/november-19th-realtimeweekly-256)

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