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Fonoster
The open source alternative to Twilio

What is Fonoster?

Fonoster presents itself as the open-source alternative to Twilio, providing a comprehensive platform for businesses to engage customers through voice and messaging channels. It is designed to simplify the development and deployment of voice applications, offering SDKs and tools tailored for building smart communication solutions without unnecessary complexity.

The platform emphasizes ease of use and developer-friendliness, supporting first-class voice applications with common verbs like Play, Say, and Gather. Security is addressed through project-level authentication based on OAuth2 and JWT tokens. Fonoster also includes capabilities for storing sound files on S3 buckets, integrating powerful Speech APIs for Text-to-Speech and Automatic Speech Recognition, and utilizing a command-line interface (CLI) for rapid deployment.

Features

  • Voice Applications: Build voice apps with support for verbs like Play, Say, Gather.
  • Project-Level Authentication: Secure applications using OAuth2 and JWT tokens.
  • Cloud Storage Integration: Store and manage audio files on S3 buckets.
  • SDKs: Available for use in Browser or NodeJS applications.
  • Command-Line Interface (CLI): Facilitates rapid creation and deployment of applications.
  • Speech APIs: Access Text-to-Speech and Automatic Speech Recognition capabilities.

Use Cases

  • Developing custom voice applications for business communication.
  • Integrating voice and messaging features into existing software.
  • Building interactive voice response (IVR) systems.
  • Implementing automated customer service calls.
  • Creating applications requiring speech-to-text or text-to-speech functionality.
  • Managing communication infrastructure as an open-source alternative.

FAQs

  • Is the self-hosted version free?
    Yes, you can self-host it and use your Community Edition for free.
  • How long will the free plan remain free?
    Fonoster is exploring ways to keep the free plan forever. The open-source version will always be available for self-hosting.
  • Do you offer special programs for government and public sector customers?
    Yes, please get in touch with Fonoster to learn more.
  • Do you offer special programs for non-profit organizations, open source projects, or educational institutions?
    Yes, special rates are offered. Contact Fonoster to apply for a concession.
  • How do I report issues and get support?
    Users in the free plan can raise issues in the issue tracker or ask questions among GitHub discussions. You can also check the support page for additional support options.

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Fonoster Uptime Monitor

Average Uptime

99.93%

Average Response Time

119.57 ms

Last 30 Days

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