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Sinch has released a package of nodes for Node-RED, which integrates with Sinch Voice API and enables you to initiate and receive phone calls.


Node-RED is a flow-based, low-code development tool for visual programming for wiring together hardware devices, APIs and online services.  It provides a web browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette that can be deployed to its runtime in a single-click.




Sinch Voice nodes consists of four nodes:


Incoming Call node

Handles and routes inbound voice calls from the Sinch Voice API for a specific application and Sinch number.

Voice Call node

Initiates an outbound voice call using the Sinch Voice API.

DTMF Answer node

Captures the DTMF (Dual Tone Multi Frequency) keypad (0-9, * and #) input from the user response.

Answered Call Event node

Stores a SVAML for a call (inbound or outbound) in case of an ACE (Answered Call Event).


To use these nodes, you must have an account with Sinch. To register for a Sinch account, click here.


Installing and Getting Started with the Nodes RED package

Click the following link to learn how to install the Node RED package and get started: Install Node RED and Get Started.  



If you encounter any issues, bugs or want to request a new feature, please raise an issue on: GitHub.