TasksAI receptionists and voice agents
Recover when a calendar is unavailable
The assistant reports the failure accurately and follows the configured callback or handoff route without inventing a booking.
- Human decision point
- An operator handles escalation or the caller approves a new available time.
- What counts as passing
- Injected failure, no unapproved booking, and a matching callback or handoff receipt.
- Listings
- 3 published listings
- Page data updated
Results on record
No connection checks, task runs or outside results are recorded for this task yet. Every listing below is publisher documented only.
Listings and fit
Two different things are sold as an AI receptionist. A configurable voice platform gives you an agent, tools and telephony to assemble: you bring the calendar, the transfer destination and the exception policy. A managed receptionist service packages answering, scheduling and escalation as a plan. Compare them on the task, not the label.
| Listing | Documented for this task | Unknowns | Evidence | Published price | Sources |
|---|---|---|---|---|---|
| Configurable voice platforms | |||||
| Retell AIConfigurable voice platform · Retell AI | Cal.com booking actions are documented. | Behavior when the calendar is unavailable is not documented in the recorded sources. | Publisher documented | $0.07 to $0.31 per voice minute across configurations USD/voice minute Price source · checked Model, voice, telephony, transfer legs and add-ons affect the bill. |
|
| VapiConfigurable voice platform · Vapi | Function tools can delegate to a server you control, which is where a fallback route would live. | Outage behavior itself is not documented in the recorded sources. | Publisher documented | $0.05 per minute for Vapi hosting USD/hosting minute Price source · checked Speech, model, and transport costs are separate. |
checked |
| Enterprise voice platforms | |||||
| PolyAIEnterprise voice platform · PolyAI | Documented flow transfers to staff with context when it cannot book. | A calendar timeout case is not documented separately from an unbookable request. | Publisher documented | Quoted per minute quote Price source · checked A separate model API rate does not establish the managed platform rate. |
checked |
Prices are shown in each publisher’s own unit (per minute, per call, per month, per page) and are not converted. A price is not a cost per completed task: that needs metered spend and a success count from the same comparable test.
Planned AgentsByTask test
Proposed. No observed result.
Pass means: Unavailable slots and a calendar timeout are separate cases. The agent never says an uncommitted booking succeeded. After caller confirmation it either checks a new slot and writes it once, or creates the configured callback or escalation receipt.
Setup: Inject errors into a sandbox. Verify the backend’s final state and any callback record. A fallback pass is distinct from a booking pass.