Inspiration
When a patient triage line, emergency clinic dispatch, or customer support workflow loses a voice call mid-sentence, callers are usually forced to dial back and repeat everything. ChimeFlow is an omnichannel triage, PII/clinical guardrail, and carrier failover workbench for teams building agentic conversations across voice (PSTN/WebRTC), SMS, and email.
What it does
- Deterministic Multi-Channel Failover Bench: Replays four realistic triage and support scenarios across voice, SMS, and email. Inject a carrier timeout, undeliverable SMS receipt, or SIP trunk outage and inspect retries, failover edges, blocked channels, and human escalation bridges on a millisecond timeline.
- Carrier-Exact GSM-7 / UCS-2 Segment Counter & Clinical/PII Guardrail: Counts 7-bit GSM-7 (including 2-unit extension characters) and 16-bit UCS-2 message segments, automatically masks Luhn-verified credit cards, SSNs, phone numbers, emails, and clinical tokens before any payload leaves a step, and enforces an 8:00 AM to 9:00 PM recipient local-time quiet window.
- Interactive Web Audio DTMF Keypad & Confidence-Gated Conversation Simulator: Run a live triage conversation in the browser where pressing keypad digits synthesizes real ITU-T dual-tone multi-frequency (DTMF) sine pairs while low-confidence or red-flag clinical phrases escalate immediately to a human operator.
- Verified Payload & Lambda Scaffolder: Exports schema-checked request payloads (
SpeakAndGetDigits,PlayAudioAndGetDigits,CallAndBridge,SendTextMessage,SendEmail,CreateSipMediaApplication) and a ready-to-adapt handler scaffold.
How we built it
Built in zero-dependency vanilla JavaScript (engine.js, render.js, app.js) with SVG timeline visualizations, Web Audio API DTMF synthesis, and automated node:test unit and DOM smoke suites verifying GSM-7/UCS-2 segmentation, Luhn/PII redaction, failover state machines, and payload schemas.
Links
- Live Workbench: https://aariv.me/chimeflow/
- Source Code: https://github.com/draarivpatel-ui/chimeflow
Built With
- ai
- healthcare
- javascript
- security
- telephony
- web-audio
