The team wanted an in-car assistant that could answer questions and control app features by voice, but building automotive-grade voice was a multi-quarter project.
They needed a working prototype fast to validate the idea.
The solution
The team embedded voice into their own app via the MyChatBot Web Voice SDK:
Voice inside the app, the MyChatBot Web Voice SDK adds inbound (WebRTC) and outbound (Twilio/SIP) calls with a few lines of JS.
Own voice and instructions, each AI voice agent gets its own voice, language and prompt, fully under the team's control.
Client-side tools, the agent calls the app's own functions mid-call, navigating the UI, searching, booking, updating records.
Persistent callers, defaultCallerId keeps a stable identity across sessions, so context follows the user.
Scales with usage, minute bundles and per-minute overage mean the same SDK serves a prototype and a production app.
Using the SDK and client tools, a working in-car assistant was prototyped in days.
What was deployed
Agents used
Voice Agent (SDK)Client Tools
Channels connected
Web Voice SDKWebRTCTwilio/SIP
"We validated a real in-car voice assistant in days, not quarters."
Yuriy Bondar
Platform Lead
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