Josèphe: voice infrastructure for a hospitality brand.
A custom voice agent stack built to scale guest interaction without breaking the brand's tone. Designed alongside the founders — and tuned line by line.
The challenge
Josèphe is a hospitality brand where the voice on the phone is part of the product. A bored employee on a Tuesday night could undo a year of brand-building. A bored AI agent would do worse.
The brief: scale the front desk and the guest call line without commoditizing what made the brand. Not a generic IVR. Not an off-the-shelf voice bot.
Our approach
We started by listening — twenty hours of recorded guest calls, transcribed, annotated for tone and inflection. The team's in-house copywriter sat with us during the prompt design sessions; the voice itself was selected from a shortlist of TTS providers tested against actual guests in blind A/B trials.
The architecture is voice-first end to end — no chatbot pretending to be voice. SIP routing, real-time speech-to-speech, custom TTS tuned to the brand's voice profile.
The stack
- SIP routingDirect carrier integration for inbound voice. Sub-second latency targets.
- Voice agentUltravox for the speech-to-speech loop, tuned via custom prompt library.
- TTSFish Audio S2 Pro, voice selection done in blind testing with real guests.
- Brand layerTone library and forbidden-phrase list maintained by the brand's copy team.
Phase 1: front desk
We deployed first on the front-desk line — bookings, modifications, basic concierge questions. The agent handles the first 90 seconds of every call. Anything beyond is routed to a human, with full context preserved.
A guest-feedback survey we ran in week 4 surfaced what we hoped: most guests didn't register that they'd been speaking to an agent at all.
What's next
Phase 2 expands to outbound — confirmation calls, post-stay follow-up, reservation reminders. Same voice, same brand discipline. The infrastructure built in Phase 1 carries directly forward.
“Voice is part of our product. We were terrified of giving it to AI. Yara took the brand seriously — they spent more time on tone than on tech, which tells you everything.”
Tell us what you're trying to ship.
Book a 30-min strategy call. We'll tell you in 30 minutes whether AI makes sense for your business — and if it does, exactly what we'd build, in what order, for what budget. No deck. No follow-up email sequence. Just a real conversation.