Integration — Messaging & comms
Twilio / PSTN
Human-facing chat and mail channels agents listen to and reply in. 6 cataloged agents connect to Twilio / PSTN. www.twilio.com ↗
Who connects
Connected agents (6)
Vapi
Vapi · voice-agent
Bland AI
Bland AI · voice-agent
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Retell AI
Retell AI · voice-agent
Synthflow
Synthflow · voice-agent
ElevenLabs Agents
ElevenLabs · voice-agent
Extended matrix — 1 more
80/20 preview
Integration table
| Agent | Vendor | Category |
|---|---|---|
| Vapi Vapi is the developer platform for voice agents: API-first orchestration of STT, LLM, TTS, and telephony so you can put an agent on a phone number in minutes — and swap every layer. | Vapi | voice-agent |
| Bland AI Bland AI is the enterprise phone-agent platform: autonomous inbound/outbound calls at scale with an emphasis on security, compliance, and call-center-grade throughput. | Bland AI | voice-agent |
| Retell AI Retell AI is a voice-agent platform focused on production call quality: fine-grained latency tuning, interruption handling, and both API and no-code agent building for phone agents. | Retell AI | voice-agent |
| Synthflow Synthflow is the no-code voice-agent product: agencies and SMBs build receptionist, intake, and outbound agents from templates without touching telephony or APIs. | Synthflow | voice-agent |
| ElevenLabs Agents ElevenLabs Agents is the voice agent platform built on the industry's best-known TTS: conversational agents with top-tier voices, phone and web deployment, and model-agnostic reasoning. | ElevenLabs | voice-agent |