Answer or place phone calls with a voice agent
Hand inbound or outbound phone calls to an AI voice agent, or build the agent that does. 35 products across 30 companies in the Ludbee catalogue carry this task — across 3 of the 4 layers of the stack: 24 Application, 3 Infrastructure, 3 Foundation Models.
Filter the whole directory by this job to sort and compare these products.
Where these run
- SaaS
- 32 of 33 products that record it
- Self-hosted
- 5 of 33 products that record it
- Private cloud
- 1 of 33 products that record it
2 of 35 products carry no recorded deployment yet, and one product can run more than one way — the counts above are of records, not of products.
What this page does not claim
This list carries no score and no recommendation, and one order only: inside each layer, a company whose product for this task is marked AI feature — sold for another job, with AI as one function its own page names — comes after the rest, A–Z within each. The standing rule that applies to the whole directory applies here too: no payment changes a figure, a ranking or the order of any list, this one included. Nor can it yet say what governs any of these products once deployed — what data they can reach, what they are certified against, whether a vendor trains on what you send it. That field is defined in the ontology and is populated on none of the 4,528 products in the catalogue yet, so a page that leaned on it would be promising an answer the data cannot back. It will say so here the day that changes.
The companies
Application (24)
- Bland AI — Bland, Norm
- Bravi — Bravi
- Cartesia — Managed Agents, Sonic / Ink
- Cognigy — Cognigy Voice Gateway
- Cresta — AI Receptionist
- Decagon — Decagon Voice
- EliseAI — VoiceAI
- Emergent — Wingman
- Fin — Fin Voice
- Forethought — Forethought Voice
- Haptik — Voice AI Agents
- Hippocratic AI — Hippocratic AI Healthcare Agents
- Inworld AI — Realtime API
- LivePerson — LivePerson Voice AI
- Rasa — Rasa Voice
- Retell AI — Retell AI Voice Agents
- RingCentral — AI Receptionist
- SK Telecom — NUGU bizcall
- SoundHound AI — OASYS, OASYS Front Desk
- Synthflow — Aurora
- Twilio — Conversation Relay
- Vapi — Composer, Vapi
- Yellow.ai — Nexus Vox, Yellow.ai Agentic AI Platform
- NiCE — NiCE Interactive Voice Response (AI feature)
Infrastructure (3)
- AssemblyAI — AssemblyAI Voice Agent API
- Deepgram — Deepgram Voice Agent API
- NAVER Cloud — CLOVA AiCall