sinch / node-red-voice-api

A package of nodes for making and receiving calls from the Sinch Voice API

Home Page:https://www.sinch.com

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@sinch/node-red-voice-api

A package of nodes for Node-RED which allows you to connect, initiate and receive voice calls through the Sinch Voice API. For more information about the Sinch Voice API and how to get started, see the documentation.

Sinch Voice API

Installation

The first step is to install Node-RED.

$ sudo npm install -g node-red

Compatible with Node-Red version 3.x.x and later

The second step is to install the package. You can either install it directly using the Palette Manager. Instructions can be found here: Node-RED.

Or install manually using npm:

Navigate to the Node-RED installation and install the package:

$ cd ~/.node-red
$ npm install @sinch/node-red-voice-api

Run Node-RED locally:

$ node-red

This will start a server for Node-RED on http://127.0.0.1:1880/.

If the installation of the node package was successful, the Sinch Voice API nodes should be available in the node palette to the left, under the category "Sinch Voice".

Get started

After you've installed Node-RED and the @sinch/node-red-voice-api package you can start building your flow. To get you started we provide an example flows.json containing the essentials for initiating and receiving voice calls. To import the flows.json file, open Node-RED in the brower and select the hamburger menu in the top right corner. Choose "Import" and press "select a file to import". The flow file will then be imported on a tab called "Example flow".

The flow.json contains two separate flow examples. For each of the flows there exists a comment node containing additional information about the configuration required to test it out.

Testing

If you're running Node-RED locally on localhost and want to test receiving voice calls and events, we recommend using a tool like Ngrok. This tool allow you to expose your localhost to the internet and makes it possible to route callback events to Node-RED. This is also a useful for testing the native Http-in node provided by Node-RED.

More about the nodes

This package contains the following four nodes:

Incoming Call node

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

In order to receive calls from the Sinch Voice APi, you need to configure a Callback URL on the voice application in the Sinch dashboard. The path should be: <node-red-path>/sinch-voice-api/callback.

Voice Call node

Initiates an outbound voice call using the Sinch Voice API.

In order to initiate calls from the Sinch Voice APi, you need to configure a Callback URL on the voice application in the Sinch dashboard. The path should be: <node-red-path>/sinch-voice-api/callback.

DTMF Answer

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

Answered Call Event (ACE)

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

Contributing

See, CONTRIBUTING.md.

Copyright and license

Copyright Sinch AB, https://sinch.com under the Apache 2.0 license.

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A package of nodes for making and receiving calls from the Sinch Voice API

https://www.sinch.com

License:Apache License 2.0


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