What alternatives exist for Twilio Video?

Some alternatives to Twilio Video are Agora, Daily, Vonage, and Zoom Video SDK. Twilio Video is still a top choice if you need: Deep integration with other communication channels, like voice and messaging Custom video layouts and media track control Natively supported SIP/PSTN bridging Excellent, comprehensive documentation Transparent, usage-based pricing

What is the maximum number of participants per room or conference?

The maximum number of participants you can have in a video room are: Group rooms: 50 participants Peer-to-peer rooms: 10 participants Small group rooms: 4 participants If you need to support more than 50 participants in a single session, you need to architect a solution with multiple rooms and custom logic (e.g., for webinars or large events).

WebRTC

Embed voice and video calls in your application

Add WebRTC-powered voice and video calling across browsers and devices with SDKs for JavaScript, iOS, and Android.

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Enjoy the benefits of WebRTC without building from scratch

Take advantage of WebRTC with Twilio

Build your ideal application with Voice SDKs and Video SDKs for Javascript, iOS, and Android. Twilio provides the software layer and server, low-latency media relay, and signaling needed to power WebRTC-based applications at scale.
Get cloud-scale reach with enterprise-grade features

Twilio WebRTC provides the full benefits of enterprise-grade insights, security, and reliability with a global, elastically scalable platform and intelligent bandwidth optimization. Plus, only pay for what you need with pay-as-you-go pricing.
Why WebRTC?

WebRTC is an open source standard used to embed communications into web-based applications for a completely customizable experience. Users can join voice or video calls with a single click and provide contextual information with integrations directly to your systems of record. Twilio built a platform on top of WebRTC so that you can take full advantage of all these features when building applications.

Building blocks to efficiently integrate browser-based calling

Global cloud infrastructure

Everything you need to take advantage of a browser's WebRTC capabilities without additional infrastructure. Connect and route voice and video calls anywhere with smart global-media routing that delivers great service quality in real-time. Twilio intelligently determines how to stream and relay media between participants to optimize audio and video quality while minimizing latency.

Connections across devices

Build applications that work across all major browsers and devices. Set up video calls that work across browsers with the JS SDK and across mobile apps with iOS and Android SDKs. Support phone calls between users on browsers, mobile client endpoints, SIP endpoints, or any PSTN telephone number. With simple API calls, Twilio WebRTC calls can be programmatically controlled, conferenced, or recorded.

Developer resources

Embed voice and video calling into your web-based applications without having to build from the ground up. Get started quickly with sample code and keep building with best in class technical documentation, SDKs, and APIs for both Voice and Video. Track and monitor the performance and quality of your calls and video chats in real-time with enterprise-grade insights and diagnostic tools. 

Learn about Twilio Voice SDKs Learn about Twilio Video SDKs

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How will you harness the power of WebRTC?

Learn more about how you can take advantage of Twilio Voice and Video SDKs, and how you can start building WebRTC-powered applications without the hassle of building from scratch.

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WebRTC FAQs

Twilio’s Network Traversal Service provides both STUN and TURN globally. You request a Network Traversal Service Token from Twilio (using your Account SID and Auth Token) and pass the resulting ice_servers array to your WebRTC client. The client uses these credentials to connect to Twilio’s STUN/TURN servers.

Most of this is handled automatically by the WebRTC stack and Twilio’s Network Traversal Service.

Your cost depends on your TURN relay usage — the amount of data relayed through Twilio’s TURN servers. The price varies by geographic region. STUN is always free and unlimited. Here’s a rough breakdown of TURN usage costs with Twilio:

U.S. West: $0.400 per GB
Europe: $0.400 per GB
Asia Pacific: $0.600 per GB
Oceania: $0.800 per GB

To bridge a WebRTC browser call to the PSTN (traditional phone network) or a SIP trunk using Twilio, you use Twilio’s Programmable Voice APIs. First, you set up Twilio Client/WebRTC in your browser app. Then configure your Twilio Voice webhook to return the appropriate TwiML (<Dial><Number> for PSTN, <Dial><Sip> for SIP). And for SIP Trunking, you set up an Elastic SIP Trunk in the Twilio Console, configure your SIP domain and authentication, and use the SIP URI provided by Twilio in your TwiML.

Some alternatives to Twilio Video are Agora, Daily, Vonage, and Zoom Video SDK. Twilio Video is still a top choice if you need:

Deep integration with other communication channels, like voice and messaging
Custom video layouts and media track control
Natively supported SIP/PSTN bridging
Excellent, comprehensive documentation
Transparent, usage-based pricing

The maximum number of participants you can have in a video room are:

Group rooms: 50 participants
Peer-to-peer rooms: 10 participants
Small group rooms: 4 participants

If you need to support more than 50 participants in a single session, you need to architect a solution with multiple rooms and custom logic (e.g., for webinars or large events).