Mute a call

This code snippet mutes / unmutes a call.

Example

Replace the following variables in the example code:

Key	Description
`UUID`	replace with the UUID of the call to modify.
`action`	the action to use in updating the call. In this case `mute` or `unmute`.

Prerequisites

Use your existing application

Modifying an existing call requires that the UUID provided is a currently active call. To modify a call, you must use the same NEXMO_APPLICATION_ID and private key that were used to create the call.

Generate your JWT

Execute the following command at your terminal prompt to create the JWT for authentication:

export JWT=$(nexmo jwt:generate $PATH_TO_PRIVATE_KEY application_id=$NEXMO_APPLICATION_ID)

Write the code

Add the following to mute-a-call.sh:

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curl -X PUT https://api.nexmo.com/v1/calls/$UUID \
  -H "Authorization: Bearer "$JWT\
  -H "Content-Type: application/json"\
  -d '{"action": "mute"}'

sleep 5s

curl -X PUT https://api.nexmo.com/v1/calls/$UUID \
  -H "Authorization: Bearer "$JWT\
  -H "Content-Type: application/json"\
  -d '{"action": "unmute"}'

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Run your code

Save this file to your machine and run it:

bash mute-a-call.sh

Prerequisites

Use your existing application

Install dependencies

npm install nexmo

Initialize your dependencies

Create a file named mute-a-call.js and add the following code:

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const Nexmo = require('nexmo');

const nexmo = new Nexmo({
  apiKey: NEXMO_API_KEY,
  apiSecret: NEXMO_API_SECRET,
  applicationId: NEXMO_APPLICATION_ID,
  privateKey: NEXMO_PRIVATE_KEY
}, {debug: true});

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Write the code

Add the following to mute-a-call.js:

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nexmo.calls.update(UUID, { action: 'mute' }, (err, res) => {
  if(err) { console.error(err); }
  else {
      console.log(res);
  }
});

function unmute (){
    nexmo.calls.update(UUID, { action: 'unmute' }, (err, res) => {
        if(err) { console.error(err); }
        else {
            console.log(res);
        }
    });
}

setTimeout(unmute, 5000); // delay 5 seconds

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Run your code

Save this file to your machine and run it:

node mute-a-call.js

Prerequisites

Use your existing application

Install dependencies

Add the following to `build.gradle`:

compile 'com.nexmo:client:5.2.1'

Initialize your dependencies

Create a class named MuteCall and add the following code to the main method:

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NexmoClient client = NexmoClient.builder()
        .applicationId(NEXMO_APPLICATION_ID)
        .privateKeyPath(NEXMO_PRIVATE_KEY_PATH)
        .build();

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Write the code

Add the following to the main method of the MuteCall class:

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client.getVoiceClient().modifyCall(UUID, ModifyCallAction.MUTE);
Thread.sleep(3000);
client.getVoiceClient().modifyCall(UUID, ModifyCallAction.UNMUTE);

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Run your code

We can use the application plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

  apply plugin: 'application'
  mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.nexmo.quickstart.voice with the package containing MuteCall:

gradle run -Pmain=com.nexmo.quickstart.voice.MuteCall

Prerequisites

Use your existing application

Install dependencies

Install-Package Nexmo.Csharp.Client

Initialize your dependencies

Create a file named VoiceSender.cs and add the following code:

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var client = new Client(creds: new Nexmo.Api.Request.Credentials
{
    ApiKey = "NEXMO_API_KEY",
    ApiSecret = "NEXMO_API_SECRET",
    ApplicationId = "NEXMO_APPLICATION_ID",
    ApplicationKey = "NEXMO_APPLICATION_PRIVATE_KEY"
});

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Write the code

Add the following to VoiceSender.cs:

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var result = client.Call.Edit(UUID, new Call.CallEditCommand
{
    Action = "mute"
});

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Prerequisites

Use your existing application

Install dependencies

composer require nexmo/client

Initialize your dependencies

Create a file named index.php and add the following code:

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$keypair = new \Nexmo\Client\Credentials\Keypair(
    file_get_contents(NEXMO_APPLICATION_PRIVATE_KEY_PATH),
    NEXMO_APPLICATION_ID
);

$client = new \Nexmo\Client($keypair);

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Write the code

Add the following to index.php:

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$client->calls[UUID]->put(new \Nexmo\Call\Mute());
sleep(3);
$client->calls[UUID]->put(new \Nexmo\Call\Unmute());

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Run your code

Save this file to your machine and run it:

php index.php

Prerequisites

Use your existing application

Install dependencies

pip install nexmo

Initialize your dependencies

Create a file named mute-a-call.py and add the following code:

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import nexmo
import time
from pprint import pprint

client = nexmo.Client(
    application_id=APPLICATION_ID,
    private_key=APPLICATION_PRIVATE_KEY_PATH,
)

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Write the code

Add the following to mute-a-call.py:

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response = client.update_call(UUID, action="mute")
pprint(response)
time.sleep(5)
response = client.update_call(UUID, action="unmute")
pprint(response)

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Run your code

Save this file to your machine and run it:

python3 mute-a-call.py

Prerequisites

Use your existing application

Install dependencies

gem install nexmo

Initialize your dependencies

Create a file named mute-a-call.rb and add the following code:

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client = Nexmo::Client.new(
  application_id: NEXMO_APPLICATION_ID,
  private_key: File.read(NEXMO_APPLICATION_PRIVATE_KEY_PATH)

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Write the code

Add the following to mute-a-call.rb:

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client.voice.mute(UUID)

sleep(5)

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Run your code

Save this file to your machine and run it:

ruby mute-a-call.rb

Try it out

When you run the code the call is muted or unmuted depending on the action specified.