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Twilio Real-Time Voice Infrastructure
System Architecture
The telephony system is split cleanly between standard HTTP webhooks and low-latency duplex audio streaming.
Authentication & Token Exchange
- The frontend client requests a communication channel.
- The Laravel backend generates an ephemeral cryptographic JWT Access Token embedded with explicit Voice Grants.
- The frontend utilizes the Twilio Voice JS SDK to initialize a peer connection using the token.
Live Media Streaming (WSS)
- Protocol: WebSockets Secure (
wss://) - Routing: Twilio pipes raw bi-directional audio directly to our media processing servers via custom TwiML App configurations.
- Network Security: The inbound
/api/calls/storeendpoint is guarded by a strict firewalled IP Allow List, matching official Twilio proxy load balancers exclusively.