Control Switch

Case Study · 02 / 05

AI Voice Agent For Inbound Calls.

After-hours overflow handled by a voice agent that books, reschedules, and triages.

Context

Where they were coming from.

A primary care network was losing roughly 18% of inbound calls outside business hours. The voicemail box was a black hole. Staff did not return them, and patients did not call back.

The work was straightforward. Confirm a name, find an open slot, ask three triage questions, escalate if anything sounded urgent. It was just happening at midnight.

What We Built

The agent, specified.

A voice agent built on Vapi orchestration, ElevenLabs voices, and a thin booking layer that integrates with the practice management calendar. The agent answers, books, reschedules, and routes anything flagged urgent to an on-call human.

  • Vapi for telephony orchestration
  • ElevenLabs voice cloning (with a real clinician's permission)
  • Real-time slot lookup against the practice management system
  • Triage classifier with conservative escalation
  • Full call transcripts written to the chart

Results

The shape of the curve after launch.

Illustrative metrics pending client sign-off. The shape of the curve matters more than the exact number. These are the moves we aim for.

73%

After-Hours Calls Resolved Without A Human

−18%

Voicemail Abandonment

92%

Patient Satisfaction In Post-Call Surveys

Have a workflow like this?

Bring us the workflow that never quite gets done. We'll spec the agent that does it.