Installation

Install the Client SDK for your target platform before creating a session.

Platform Requirements

Platform	Minimum Version	Required Permissions
Android	SDK 23 (Android 6.0)	INTERNET, RECORD_AUDIO
iOS	iOS 15.0	Microphone usage (NSMicrophoneUsageDescription in Info.plist)
Web	Modern browsers with WebRTC support (Chrome 70+, Firefox 60+, Safari 14.1+, Edge 79+)	Microphone access (prompted via browser)

Version pinning in production

The examples below use latest.release (Android) and @latest (CDN) for simplicity. In production applications, always pin to a specific version (e.g., com.vonage:client-sdk-voice:2.3.1 or @vonage/client-sdk@2.3.1) to ensure reproducible builds and avoid unexpected breaking changes on upgrade. Check the Changelog for release notes before upgrading.

1. Ensure Maven Central is available in your repositories:

dependencyResolutionManagement {
    repositories {
        mavenCentral()
    }
}

2. Add the Voice SDK dependency:

dependencies {
    implementation("com.vonage:client-sdk-voice:latest.release")
}

3. Add required permissions to your AndroidManifest.xml:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />

INFO

You must also request RECORD_AUDIO at runtime before making or answering calls (Android 6.0+).