# Telephony developer tools

> 5 developer and vibe-coding tools tagged telephony in the Digidle Tools directory, across categories, A to Z, each with its official link.

- Tag page: https://digidle.com/tags/telephony/
- All tags: https://digidle.com/tags/

## Tools (A to Z, not a ranking)

- [Bland AI](https://digidle.com/tools/bland-ai.md) (Frameworks & Dev Tools): Voice agent platform for phone calls with one per-minute rate that covers the LLM, speech-to-text and text-to-speech: Conversational Pathways for call flows, knowledge bases, version lock, your own Twilio or SIP trunk, and on-prem or VPC on Enterprise. Start plan $0.14 a minute with no platform fee and no card. Official site: https://www.bland.ai.
- [ElevenLabs Agents](https://digidle.com/tools/elevenlabs-agents.md) (Frameworks & Dev Tools): ElevenLabs' hosted platform for voice agents: its own speech-to-text, your choice of LLM or a custom model, 10,000+ voices, a turn-taking model, a visual workflow builder, knowledge bases, tests and A/B experiments. Deploys to phone over Twilio or SIP, a web widget, or iOS, Android, React Native and Unity SDKs. Free plan with 15 call minutes; $0.08 a minute after that, LLM billed on top. Official site: https://elevenlabs.io/agents.
- [Retell AI](https://digidle.com/tools/retell-ai.md) (Frameworks & Dev Tools): Platform for AI phone agents: a drag-and-drop call-flow builder, simulation and regression tests, outbound campaigns, live call monitoring with takeover, IVR navigation and CRM write-back, plus chat and SMS agents. Pay as you go at $0.07 to $0.31 a minute depending on model and voice, 20 concurrent calls included and $10 of free credit. Official site: https://www.retellai.com.
- [Synthflow](https://digidle.com/tools/synthflow.md) (Frameworks & Dev Tools): Enterprise platform for AI voice agents on customer calls, sold as one annual contract that covers telephony (Synthflow's own or SIP), CRM and calendar integrations, security review and launch by forward-deployed engineers. SOC 2 Type 2, ISO 27001, HIPAA and GDPR. No free plan or per-minute rate. Official site: https://synthflow.ai.
- [Vapi](https://digidle.com/tools/vapi.md) (Frameworks & Dev Tools): Developer platform for voice agents that make and take phone calls: pick the transcriber, model and voice from dozens of providers, build single assistants or Squads that hand callers between specialists, test with simulations and manage config as code from a CLI. $0.05 a minute for Vapi hosting, with providers passed through at cost and $5 of free credit. Official site: https://vapi.ai.

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Source: Digidle Tools (https://digidle.com/), a curated directory of developer and vibe-coding tools. Pricing is not verified by Digidle unless stated in a description; check the official site. Full index: https://digidle.com/llms.txt