# ThunderPhone

ThunderPhoneは、着信・発信通話やウェブ／アプリ経由の通話に対応する音声エージェントを構築、テスト、デプロイするためのAI電話エージェントプラットフォームです。電話機能、言語サポート、ワークフロー連携を一つのスタックで備えた本番向けの通話対応を必要とするチームに適しています。

- Findings24: <https://findings24.com/ja/products/thunderphone>
- ウェブサイト: <https://thunderphone.com>
- 料金: Freemium
- カテゴリー: Developer Tools

## ThunderPhoneとは？

ThunderPhone is a platform for building, testing, deploying, and monitoring AI phone agents. It supports inbound and outbound calling, plus web widgets and app-based voice experiences, so teams can run call workflows from one system instead of stitching together separate tools.

The site positions the product around real-world phone handling: knowledge grounding from documents, SIP trunking, transfers, voicemail and screener detection, DTMF capture, live supervision, and multilingual conversations. The pricing page shows three tiers — Spark, Bolt, and Storm — with different tradeoffs in latency, audio understanding, and instruction following.

## ThunderPhoneでできること

### Production call handling

Supports inbound calls, outbound calls, and bulk outbound campaigns with pacing and retries. The homepage also notes TCPA-compliant cold outbound availability through ThunderHuman.

### Multichannel voice runtime

Runs over real telephony with HD Voice support, and can also be embedded in a site or app through web widgets or app-based experiences.

### Knowledge grounding

Agents can answer from uploaded documents using built-in retrieval, with the workflow described as upload docs, test search, and deploy.

### Call controls and handoff

Includes warm transfer, cold transfer, human handoff, DTMF capture, voicemail detection, and screener detection for outbound calls.

### Testing and supervision

The platform provides simulated callers, AI-graded test calls, call grading, live supervision, and the ability to whisper guidance to a live agent.

### Integration and API options

Connects to CRM, calendar, SIP, MCP servers, REST APIs, webhooks, and bring-your-own-number telephony providers such as Twilio, Telnyx, Vonage, Plivo, and SignalWire.

## 利用シーン

### Appointment and scheduling calls

Use calendar and scheduling integrations such as Google Calendar or Cal.com to check availability, book appointments, and update or cancel events during live calls.

### Customer support and front-desk routing

Handle inbound questions, collect details, and transfer callers to a human when needed, which fits front-desk workflows and general support lines.

### Outbound reminders and follow-ups

Run paced outbound campaigns with retries for reminders, follow-ups, and other structured call sequences where timing matters.

### CRM update and lead intake workflows

Connect to HubSpot or Salesforce to find records, create or update contacts, and log confirmed call outcomes during conversations.

### Telephony modernization with existing numbers

Keep current carriers or numbers through SIP, Twilio, Telnyx, Vonage, Plivo, or SignalWire instead of rebuilding the full phone setup.

## よくある質問

### Does ThunderPhone support both inbound and outbound calls?

Yes. The site says agents can place or receive calls, and the pricing page includes inbound and outbound calls as part of the included stack.

### Can ThunderPhone connect to existing phone numbers or carriers?

Yes. The site mentions SIP trunking and bring-your-own-number options through providers such as Twilio, Telnyx, Vonage, Plivo, and SignalWire.

### What kinds of integrations are available?

The integrations page lists tools for scheduling, CRM, spreadsheets, internal messaging, MCP servers, REST APIs, webhooks, and Zapier via MCP.

### How do teams test agents before launch?

The platform includes simulated callers, text or audio tests, AI-graded test calls, manual or automated test runs, and call grading for regression testing.

### Is ThunderPhone only no-code?

No. The site shows a no-code front end, raw API access, and enterprise deployments, so teams can choose the workflow that fits their setup.

## クイック情報

- **Category**: AI Phone Agents
- **Platform**: Web app, telephony, API
- **Primary workflows**: Inbound calls, outbound campaigns, scheduling, support, supervision
- **Integrations**: Cal.com, Google Calendar, Google Sheets, HubSpot, Salesforce, Slack, Twilio, Telnyx, Vonage, Plivo, SignalWire, Zapier via MCP
- **Languages**: 40+ languages stated on the site; 47 languages mentioned in the page metadata
- **Pricing model**: Tiered per-minute pricing with Spark, Bolt, and Storm