Over the shoulder view of code on a monitor. The text reads, "Build a web app, learn something new, earn rewards. Brought to you by Twilio and CodeTV. Web Dev Challenge"

Photos: Albert Woods

Press 1 for an awesome AI-Powered Hotline

Ever thought: gee, I wish there was a hotline for that? Well now’s your chance to build it!

Think: an office-hours hotline, community resources line, pizza-ordering line, event status line, bug triage, wake‑up calls, volunteer coordination, campus shuttle tracker — if it rings it fits.

The Tool: ConversationRelay

Your hotline must use ConversationRelay as part of the build.

Twilio’s ConversationRelay lets you place a relay layer between callers and your logic so you can route messages, swap in bots or humans, and keep a clean separation of concerns.

Use it with Twilio Programmable Voice and/or Messaging (SMS/WhatsApp), webhooks, and your runtime of choice (Twilio Functions/Studio/Serverless or your own stack).

Make new connections and get expert guidance

The Twilio team has set up a dedicated channel on the Twilio Discord for brainstorming, sharing ideas, and keeping each other accountable.

Multiple Ways to Win!

The Twilio team will choose three built hotline submissions to win some great Twilio swag from our merch store and Twilio credits.

The first five qualifying hotlines submitted will also receive an item of their choice (up to $150) from Ugmonk, Drop, or Cocoon.

Finally, whether you’ve built a hotline or just have a great idea, share it in the challenge thread on Twilio’s X account. The top five ideas by total likes, comments, and reshares at the deadline will each receive a gift card valued at $25. As a bonus, we will be building one standout idea live on Twitch with Alex and Jason.

Watch the episode for inspiration

See how Jack, Sherm, Brian, Pedro, Avi, and Dibyanshu tackled the challenge in the latest episode of Web Dev Challenge to jumpstart your own creativity.

The rules and how to submit

If you want to play along, here’s how:

  1. Team up with a friend or work on your onw
  2. Build a web app that meets the challenge
  3. Spend 30 minutes¹ planning your app
  4. Spend 4 hours¹ building your app
  5. Use ConversationRelay to build your web app
  6. Publish the source code as a public GitHub repo
  7. Publish the web app to a public URL
  8. 11:59 pm Pacific on Friday, Nov 21, 2025 by replying to Twilio’s post on X

Bonus: you can also win for a great idea!

If you don’t have time to build a hotline, you can also win by submitting our favorite hotline idea. Reply to the post with your idea, and if we decide to build it, you’ll win a prize!

Submit your web app

Happy building! Let’s have some fun.