Custom call flows

Man gets routed through call flow

Build a call flow that meets your needs

Build logic into your workflows to create call flows that connect you to the right customers at the right time. The Telnyx Voice API makes building call flows a breeze, while the Mission Control Portal makes it easy to monitor your usage, spend and call quality.


Set up in minutes

Simple XML-based scripting allows you to create custom call flows with intuitive syntax. Or, use our powerful REST API for real-time responsive call flows.


Time to build your first XML-based voice app with TeXML

Get expert service and support

Our award-winning support teams have direct troubleshooting access to our private network infrastructure and in-depth knowledge of our APIs for faster resolutions.


Rated CPaaS platform for customer results, G2 Winter 2023

How it works
  1. 1

    Select features for ultimate efficiency

    Incorporate speech-to-text, call recording, answering machine detection and more to determine where to send customers when they call. Our voice API and integrations make building a custom solution seamless.

  2. 2

    Start with simple low-code deployment

    With TeXML Bin in the portal, non-technical Telnyx users have the ability to start building call flows that work in just a few minutes. Start out with a simple call forwarding app or build a functioning IVR in the portal.

  3. 3

    Monitor in the Mission Control Portal

    Manage your numbers, SIP trunks and applications in one place. Deep dive into call quality and usage metrics with our free debugging tools and real-time reports for ultimate transparency.

  4. 4

    Scale custom call flows across the globe

    Expand your existing, validated call flows to new countries in a few clicks, thanks to advanced number porting and provisioning. Our regulatory experts can help you navigate complex requirements in your desired countries.


Build with developer-friendly APIs

  • Icon Resources Docs

    Build a custom call flow

    Follow our tutorial to build a call flow application using the Telnyx Voice API, TeXML and the Python AIOHTTP library.

  • Icon Resources Coding Tutorial

    Watch: building an IVR with the Telnyx API and Ruby SDK

    Streamline your customer experience and increase satisfaction with an Interactive Voice Response system, built with our Ruby SDK.

  • Icon Resources Article

    How can answering machine detection help you?

    Make the most of your contact center with premium answering machine detection from Telnyx.

Ready to build something incredible?

Call flow is a term that is used to describe how a call is routed through a system. This includes routing customers to free agents or to the correct support team (e.g. billing instead of returns). In some cases, call flows can even enable users to self-serve by playing pre-recorded information.