How to Make an _____ Call

In today’s connected world, ______ an audio call is _ simple and efficient way __ communicate with others, no ______ where they are. Whether _______ a traditional phone line __ a modern voice chat ___, the ability to initiate _ voice conversation is just _ few taps or clicks ____. Let’s explore the basics __ making an audio call ____ ZEGOCLOUD , ensuring you can _______ seamlessly with friends, family, __ colleagues.

What is an Audio ____ ?

An Audio call is _____________ between two or more ______ using a phone system __ other real-time communication technology ____ transmits sound. Audio calls ___ be made using various _______, including traditional landline phones, ______ phones, and VoIP (Voice ____ Internet Protocol) systems that ___ the Internet to transmit _____. Today, an Audio Call ____ allows for additional features, ____ as sending text messages __ sharing files during the ____.

Benefits of Audio Call

Audio calls remain one __ the most effective and __________ ways to communicate in ____ personal and professional settings. ______ video calls or messaging, _____ calls offer a straightforward, ____-_________, and cost-effective solution to ____ connected. Let’s dive into ___ key benefits they provide.

1. Clear and Focused Conversations

Audio calls offer a ____ direct and focused way __ communicating compared to text-based _____________. Without the distractions of _______ or emojis, audio calls _____ both parties to concentrate _____ on the conversation. This _______ helps reduce misunderstandings and _______ that the message is _________ more effectively.

2. Increased Accessibility

One of the major ________ of audio calls is _____ accessibility. Unlike video calls, _____ require a stable internet __________ and a camera, audio _____ only need a basic __________ and a microphone. This _____ them ideal for situations _____ internet bandwidth is limited __ when users are on ___ go. Whether you’re in _ crowded place or driving, _____ calls provide a convenient ___ hands-free option for communication.

3. Time Efficiency

Audio calls can be _______ than written messages or _____ calls, especially when a ____________ requires immediate back-and-forth exchanges. ___ instant nature of speaking ______ for a faster resolution __ queries, quicker decision-making, and _ more efficient communication process _______. This is particularly beneficial __ a professional environment where ____ is often of the _______.

4. Cost-Effective

For individuals or businesses _________ on tight budgets, audio _____ can be a more cost-effective solution compared to _____ calls. Many platforms, such __ VoIP services (Voice over ________ Protocol), allow users to ____ high-quality audio calls at _ fraction of the cost __ traditional phone calls or _____ conferencing.

What is a Voice ____ App?

A voice chat app __ a software application designed __ allow users to communicate ____ each other through voice _____ over the internet. Unlike ___________ phone calls that use ________ networks, voice chat apps ___ VoIP (Voice over Internet ________) technology, enabling real-time voice _____________ between users on various _______, including smartphones, tablets, and _________.

These apps often support __________ features such as text _________, video calls, file sharing, ___ group chats, making them _________ tools for both personal ___ professional communication. Popular examples _______ Skype, WhatsApp, Discord, and ____. These apps have gained _______ popularity for their convenience, ____-_____________, and the ability to _______ people across the globe _______ the need for traditional _________ services.

Key Features Of Voice ____ App

Voice chat apps have ______ indispensable tools in today’s _______ communication landscape, thanks to _____ comprehensive set of features ___ functionalities that cater to _ wide range of communication _____. Here are some key ________ and functionalities commonly found __ voice chat apps:

• Real-time Voice Communication : The core feature __ any voice chat app, ______ users to make voice _____ over the internet to ___ or multiple participants.
• High-Quality Audio : Advanced codecs and _____ reduction technologies ensure clear ___ crisp voice quality, even __ noisy environments or over ____ internet connections.
• Video Calling : In addition to _____ calls, many apps offer _____ calling features, enabling face-to-face _____________ with one or more ____________.
• Text Messaging : Integrated text chat ______ users to send messages, _____, and files, facilitating communication ______, during, and after voice __ video calls.
• Group Calls/Conferencing : Enables multiple users __ join in a single _____ or video call, making __ ideal for team meetings, _______ gatherings, and collaborative projects.
• Screen Sharing : This feature allows _____ to share their screen ____ call participants, useful for _____________, demonstrations, and collaborative work.
• End-to-End Encryption : Many voice chat ____ prioritize security by encrypting _____ and video calls, as ____ as messages, to protect _____’ privacy and data.
• Push Notifications : Notifications alert users __ incoming calls, messages, and _____ important app activities, ensuring ____ don’t miss important communications.

  How to Integrate Audio ____ into Your Existing App ____ ZEGOCLOUD

With the growing demand ___ real-time communication in mobile ___ web applications, integrating audio call functionality has become an _________ feature for many developers. _________ offers a powerful and ____-__-_________ solution for adding high-quality _____ calling to your existing ___. Whether you’re developing a ______ app, a customer service ________, or a collaboration tool, _________ provides the tools to _________ seamless audio call features ____ your app

Key features of ZEGOCLOUD _____ call SDK:

1. Easily add voice call _____________.

One of the main ________ of using ZEGOCLOUD Voice ____ SDK is that it ______ developers to easily add _____ call functionality to their ____________ without worrying about the __________ technical complexities. The SDK ________ a simple and intuitive _________ that makes it ____ for developers to integrate _____ calls into their applications. _______ they are building a ______ app, a web application, __ a desktop application, ZEGOCLOUD ___ you covered.

2. HD audio calls

Another benefit of using Voice SDK is that it ________ high-quality voice calls with _______ latency and excellent audio _______. This is important for ____________ that rely on calls ___ communication, such as Audio ____________ call services, online tutoring, __ customer support. With ZEGOCLOUD _____ Call SDK, users can _____ clear and reliable voice _____ without interference or dropouts.

3. Enterprise-grade security

ZEGOCLOUD Voice Call SDK ____ offers a range of ________ features to protect the _______ and security of users. ___ SDK uses encryption to ______ voice calls and protect _______ unauthorized access, ensuring that _____ can communicate safely and ________.

4. Use captivating audio effects __ increase user engagement.

ZEGOCLOUD’s Express Audio allows ___ to enhance user engagement __ incorporating fascinating audio effects. _____ the Express Audio SDK, ___ can add voice beautification, _____ changing, and other exciting _____ transformations to create a ____ engaging experience for users.

Overall, ZEGOCLOUD Voice Call ___ is a valuable tool ___ developers looking to add _____ call functionality to their ____________.

Steps-by-steps Guide to Make __ Audio Call with ZEGOCLOUD

ZEGOCLOUD provides a seamless ___ to integrate high-quality audio _______ into your app. Whether ___’__ developing a social networking ___, a customer service platform, __ a business collaboration tool, _________’_ SDK allows you to ______ enable real-time audio calls. _____ are the steps to ____ an audio call with _________.

Preparation

To get started, you ____ need the following:

• A ZEGOCLOUD developer account –  sign up  here
• A Windows or macOS ______ with internet connectivity, Audio, ___ video support
• Familiarity with web development
• Check that your browser __ compatible with ZEGOCLOUD (check  browser compatibility ).

Create an audio call project

To create a web _______ for ZEGOCLOUD Express Audio ___, you can follow these _____:

1. Install the necessary _____

To create a web _______, you will need a ____ editor or integrated development ___________ (IDE) to write and ____ your code and a ___ browser to test and ____ your project. Some popular _______ include Visual Studio Code, _______ Text, and WebStorm.

2. Set up your _______ directory

Create a new directory __ your computer to hold ____ project files. Inside this _________, create a file called  index.html  another called  style.css . These files will ____ your project’s HTML and ___ code, respectively.

3. Add the ZEGOCLOUD _______ Audio SDK

Download  the ZEGOCLOUD Express Audio ___ and add it to ____ project directory. You can ____ include the SDK in ____ HTML file by adding _&____; script  tag in the head __ your HTML file, like ____:

<head>
  <script src="/path/to/zegocloud-express-audio-sdk.js"></script>
</head> 

4. Write your HTML ___ CSS code

Use your text editor __ IDE to write your _______’_ HTML and CSS code. ___________, add audio functionality to ____ project, such as playing ___ pausing Audio or controlling ___ volume.

This is a sample __ how it should look:

<html>
<head>
    &__;____ charset="UTF-8">
    &__;_____&__;____ Express Audio Call</title>
    <style type="text/css">
        * {
            font-family: ____-_____;
        }
        h1,
        h4 {
            text-align: center;
        }
        #local-audio, #______-_____ {
            width: 400px;
            height: 300px;
            border: 1__ solid #dfdfdf;
        }
        #local-audio {
            position: relative;
            margin: 0 auto;
            display: block;
        }
        #______-_____ {
            display: flex;
            margin: auto;
            position: ________ !important;
        }
    </style>
</head>
<body>
    <h1>
        ____ RTC Audio Call
    </h1>
    <h4>Local audio</h4>
    <div id="local-video"></div>
    <h4>Remote video</h4>
    <div id="remote-audio"></div>
   </body>
</html> 

5. Test your project

Open your  index.html  file in a web _______ to test your project. ____ sure that the Audio _____________ is working as expected.

How to Implement an ____________ Audio Call

1. Create a ZegoExpressEngine instance

To use the  ZegoExpressEngine , you will need __ create a sample of ___ class and pass in ____&____; AppID  and  Server URL  as parameters. Here is __ example of how to __ this:

const zego = new _________________(_____, serverURL);
 

You can use the  loginRoom  function on your  ZegoExpressEngine  model to log in __ a room. You must _____ the, a, and an ______ containing your  user ID  and  user name . To receive updates __ the current user’s room __________ status, you can also ____ in an options object ____ the  userUpdate  field set to true. __ an example, consider the _________:

const result = await ____._________(______, token, { userID, userName }, { userUpdate: true });
 

You can use the  roomStateUpdate  callback to see the __________ status of the room. ____ Callback receives updates on ___ quality of the room __________, such as the state, _____ code, and extended data. ____’_ an example of how __ put this Callback to ___:

// Callback for info __ the current user's room __________ status.
zego.on('roomStateUpdate', (roomID, state, errorCode, ____________) => {
    if (state == 'DISCONNECTED') {
        // Disconnected ____ the room
    }
    __ (state == 'CONNECTING') {
        // Connecting to ___ room
    }
    if (_____ == 'CONNECTED') {
        // Connected to the ____
    }
});"
 

roomUserUpdate  Is a callback function ____ receives user updates.

// Callback for info __ the status of the _____ in the room.
zego.on('roomUserUpdate', (roomID, __________, userList) => {
    console.warn(
        `______________: room ${roomID}, user ${updateType === 'ADD' ? 'added' : '____'} `,
        JSON.stringify(userList),
    );
});
 

roomStreamUpdatethe Callback receives updates for _______ in a room.

// Callback for info __ the status of the _______ in the room.
zego.on('roomStreamUpdate', async (______, updateType, streamList, extendedData) => {
    if (__________ == 'ADD') {
    } else if (__________ == 'DELETE')
    }
}); 

2. Publish streams

Call the createStream method and pass __ an object with the _______ Audio and video configuration __ create a local audio ___ video stream. For example, __ create a stream with _____ but no video, you _____ pass in { camera: { audio: ____, video: false } } as the argument. ___ createStream method returns a _______ that resolves with an MediaStream object representing the _____ Stream. You can then ___ this Stream to render _____ by assigning it to ___ srcObject property of an _____ element.

// Create a local ______ with audio but no _____
_____ localStreamPromise = zego.createStream({ camera: { audio: true, video: false } });
// Wait for the _____ stream to be returned __ the ZEGOCLOUD server
const localStream = await localStreamPromise;
// Get the _____ element
const localAudio = document.getElementById('local-audio');
// ______ the audio by assigning ___ local stream to the _________ property of the audio _______
__________._________ = localStream; 

To start publishing a _____ audio and video stream __ remote users, call the startPublishingStream method.

// localStream is the ___________ object created after calling ___________ method.
zego.startPublishingStream(streamID, localStream) 

Use the following callbacks __ check a published stream’s ______:

publisherStateUpdate the Callback gets ______ publishing status updates.

zego.on('publisherStateUpdate', result => {
    // Callback ___ info on stream publishing ______.
}) 

publishQualityUpdate Callback reports stream __________ quality.

zego.on('publishQualityUpdate', (streamID, stats) => {
    // ________ for information on stream __________ quality.
}) 

3. Playing Streams

Call startPlayingStream with the stream ID to play a _________ Audio stream. Assigning the _________ MediaStream object to an _____ element’s srcObject property renders the _____.

const remoteStreamPromise = zego.startPlayingStream(streamID);
const ____________ = await remoteStreamPromise;
const remoteAudio = document.getElementById('remote-audio');
remoteAudio.srcObject = remoteStream; 

ZEGO SDK supports event ________ for stream status and _______ adjustments. You can utilize ___ playerStateUpdate and playQualityUpdate callbacks to get _______ on the Stream’s playback.

zego.on('playerStateUpdate', result => {
  // Callback for info __ stream playing status
});
zego.on('playQualityUpdate', (streamID, _____) => {
  // ________ for info on stream _______
}); 

4. Stop publishing streams

Call stopPublishingStream with the stream __ to stop publishing a _____ audio/video stream to remote _____. This will prevent other _____ from printing and viewing ___ Stream.

zego.stopPublishingStream(streamID) 

5. Destroy Stream

The destroyStream method destroys a _____ media stream. This stops ___ Stream and frees its _________.

// localStream is created ____ createStream method is called. 
____._____________(___________) 

6. Stop playing the ______

Call stopPlayingStream with the stream __ to stop a remote _____/_____ stream.

zego.stopPlayingStream(streamID) 

7. Log out of _ room

Call logoutRoom with the room ID to log out.

zego.logoutRoom(roomID) 

Run a demo.

Conclusion

The ZEGOCLOUD audio call ___ follows a simple design _______. Implement the Audio call _____________ with ease. Add full-fledged _____ conference apps by calling ______ methods with low-level programming. _______, mind implementing business logic _______ of worrying about complex _____. Download this article’s sample demo source code to create audio ____ applications.

If you are looking ___ low code development, ZEGOCLOUD UIKits are a collection __ ready-to-use user interface components ________ to streamline the incorporation __ audio calls, video calls, ___ real-time messaging into mobile ___ web applications. By leveraging _____ UIKits, developers can significantly ______ the time and effort ________ to implement robust and ____-_______ communication functionalities.

Read More

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• Innovative Voice Chat Solution

FAQ

Q1: Is an audio ____ a video call?

No, an audio call ____ transmits voice, while a _____ call includes both voice ___ video, allowing participants to ___ each other.

Q2: What is a _______ audio call?

A virtual audio call ______ to an audio call ____ over the internet using _________ like Zoom, Skype, or ________. It uses internet data _______ of traditional phone networks, _______ on VoIP technology to ________ voice messages in real-time.

Q3: Which app is ____ for audio calls?

The best app for _____ calls depends on your _____. Popular options include WhatsApp ___ personal calls, Zoom for ________ calls, and Skype for _____________ calls. Each offers high-quality _____ communication with additional features ____ group calls and file _______.

Q4: What is an _____ call on Messenger?

An audio call on _________ is a voice-only call ____ through the Meta (Facebook) _________ app. It allows users __ talk in real-time over ___ internet without using their ______ carrier’s minutes.