Test Non-Production Media Streams Traffic with New IP Address Pool

Beginning effective immediately, you can now test non-production Twilio Services with the new Media Streams IP address pool to ensure that your production services will easily transition when the new Media Streams IP address pool range goes live on November 16, 2023.

As a reminder, on November 16, 2023, Twilio will send Media Streams media from publicly available Amazon Web Services Internet Protocol (AWS IPs) instead of the current IP pools. This change was previously communicated via Twilio Changelog and email on July 20, 2023.

We’re making this change to Media Streams IP Address Pools to improve the flexibility, reliability, and scalability of our Voice products

To avoid service interruptions, you or a developer on your team should test your applications that use Media Streams before November 16, 2023, following the steps below:

1. Click the button below to ask Twilio to enable the new IP address pool for your non-production (i.e. staging or dev) Twilio account SID. 

   • Once you click the button below, then click on the “Submit a Ticket” box/choice in the page that pops up there,  and then in the form that pops up in submitting a ticket,  select “Programmable Voice” as the product, and  make sure to put in the “Media Streams New IP Address Pool Testing” keywords somewhere in the text problem description in ticket, as well as referencing this changelog or ‘COMMS-1875’ there.

   • Twilio will contact you when the new IP address pool is enabled.

2. After the new IP address pool is enabled, configure your firewall rules to allow secure websocket connections (TCP port 443 or your custom secure websocket server port) to your websocket servers from any public IP address.

3. Verify the media stream comes from an authentic Twilio source, as your application validates the X-Twilio-Signature header.

4. Test your non-production application instance using the new IP address pool

If you don’t take action before November 16, 2023, then after we make the change in IP Address Pools used by Media Streams, Twilio’s Media Streams infrastructure won’t connect to your websocket server and your application won’t receive the Media Streams’ media from calls. Twilio strongly recommends testing your Media Streams application with the above new public IP address blocks prior to November 16.

Enable New IP Address Pool for Testing with Your Media Streams Non-Production Application Instance !