eTermin
Connect eTermin so your voice agents can check availability and book, reschedule, or cancel real appointments while a caller is still on the line — straight into your eTermin calendars and services, with built-in protection against double-booking.
eTermin is available on all plans including Free. There's no per-booking fee — availability checks and bookings use a few words of LLM output per turn, billed at your normal per-minute rate.
What It Does
Once connected, the agent works with your existing eTermin setup:
- Reads your calendars and services — the agent knows which services you offer and when you're open.
- Checks availability — it confirms whether a requested slot is actually free before offering it.
- Books appointments — it creates a confirmed booking on the call, capturing the caller's details.
- Reschedules and cancels — callers can move or cancel an existing appointment without waiting for a callback.
- Prevents double-booking — see Double-Booking Protection below.
When to Use eTermin vs. a Plain Calendar
Both eTermin and the Google / Outlook calendar tools let an agent book appointments. Choose based on how you already run scheduling:
| Use eTermin when… | Use Google/Outlook Calendar when… |
|---|---|
| You already run your bookings in eTermin | You schedule everything in Google or Outlook |
| You offer distinct services with their own durations, resources, and rules | A single calendar with fixed slots is enough |
| You need reschedule and cancel handled inside the booking system | Simple create-and-cancel-link is sufficient |
| Staff, rooms, or resources must never be double-booked | One calendar, one resource |
If eTermin is where your appointments live, connect eTermin so the agent books into the same system your team already uses.
Connecting eTermin
The connection lives at the HANC account level — you authorise once, and every voice agent in your account can then use the eTermin tool.
- Open Integrations in the sidebar and find the eTermin card.
- Click Connect eTermin.
- Authorise HANC to access your eTermin account and follow the on-screen prompts to link it.
- Back in HANC, the integration card shows Connected.
Once connected, HANC reads your eTermin calendars and services so the agent can offer them by name.
The exact fields eTermin asks for depend on your eTermin plan. Have your eTermin login (and any API access your plan provides) to hand before you start.
Per-Agent Tool Configuration
Connecting eTermin to your account makes the tool available. To actually use it, add the eTermin tool to the agent's Actions tab and point it at the calendar and services the agent should offer.
Each agent can be configured independently — for example, one agent books consultations while another books service visits, both from the same eTermin account.
For adding tools to an agent, see Voice Agents → Actions.
What the Agent Can Do on a Call
Once the tool is enabled, the agent can, mid-conversation:
- Offer real availability — "The next opening for a consultation is Thursday at 10 a.m. — does that work?"
- Book the appointment and confirm it back to the caller.
- Reschedule an existing appointment to a new free slot.
- Cancel an appointment when the caller asks.
Example conversation:
Customer: "I'd like to book a haircut for Friday afternoon."
Agent: [Checks eTermin availability]
"Friday at 2:30 p.m. is open. May I have your name
to confirm the booking?"
Customer: "Yes — Anna Berger."
Agent: [Creates the booking in eTermin]
"Done — you're booked for Friday at 2:30 p.m.
You'll get a confirmation shortly."
Double-Booking Protection
Before it confirms anything, the agent re-checks the slot against eTermin's live availability. If two callers ask for the same time — or the slot fills between the moment it was offered and the moment it's confirmed — eTermin's booking rules block the conflict, so a slot, staff member, or resource is never handed out twice. The agent simply offers the next free option instead.
Disconnecting
You can disconnect eTermin at any time from the Integrations page. When you disconnect:
- The eTermin tool stops firing on every agent that used it.
- Appointments already booked in eTermin are not changed or removed.
Reconnect later and your agents can pick up right where they left off.
Related
- Integrations — all available integrations
- resmio Table Reservations — the restaurant-booking equivalent
- Google Calendar — plain calendar booking
- Voice Agents → Actions — adding the eTermin tool to an agent