Building web-based voice calling from scratch can be difficult and time-consuming; with our Voice SDK, we’ve dealt with that so you can focus on building. Quickly and conveniently embed real-time voice and PSTN calling into your applications with our plug-and-play code.
Use cases
Capabilities
Build web-based calling applications with the Voice API
Add real-time voice and PSTN calling to your web applications
Connect calls between any native device, landline, or mobile phone number
Your WiFI or data connection delivers calls between Twilio and your application, and Twilio handles the connection between networks
Features
Provide a seamless WebRTC audio experience, and bridge calls to the PSTN carrier network, SIP endpoints, or to other browser and mobile clients in one line of code.
Route data through one of nine Twilio global edge locations to provide the lowest latency possible to your customers.
Add interactivity to your application by playing pre-recorded voice prompts and music.
Transcribe recorded voice calls into readable text and metadata.
Build an intelligent, yet simple, call queueing system for incoming callers.
Create global calling experiences for up to 250 callers.
Embed voice calling into native apps with the same features used in Voice web apps, along with built-in Echo Cancellation and Automatic Gain Control (AGC).
Monitor your call quality in real-time and deliver an exceptional web-based calling experience.
Record, store, and retrieve your application’s voice calls in the cloud.
Convert text into human speech in 26 languages and accents.
Monitor your application’s usage thresholds and trigger custom webhooks.
Get started
Embedding voice and PSTN calling into your web application is a straightforward process with Twilio Voice SDK. Get started building your custom voice calling experience.