In-App Voice Overview [Early Access]

Nexmo In-App Voice uses WebRTC and includes all the essentials you need to build a feature rich voice experience.

Nexmo In-App Voice integrates with the Nexmo Voice API which amplifies the In-App Voice offering through extra functionality such as:

The Android and iOS Client SDKs additionally offer:

Setup

Conversation API concepts:

Application: A Nexmo Application provides a container for Users and Conversations.
User: A User represents an entity such as a person that wishes to communicate.
Conversation: A Conversation connects Users and allows them to communicate.
Member: A Member is created when a User joins a Conversation.
Call: A Call consists of one or more Legs.
Channel: A Channel refers to one of App, Phone, SIP or Websocket.
Leg: A Leg connects a User with a Conversation.
Media: Media refers to type of communication. It is currently one of text, voice, or video.
Event: Conversations are event-driven. Event objects are generated when key activities occur.
Session: A Session is a live communication stream created with a Client SDK.
How to generate JWTs: This topic explains how to generate JWTs for use in your app. JSON Web Tokens (JWTs) and Access Control Lists (ACLs) are a key concept to understand in order to authenticate your apps and users.

In-app Voice concepts:

Start and Receive Calls: How to set up your app to start and receive in-app calls.
Enable Audio: How to enable audio features in a Conversation.
Call Member Actions: How to enable call actions on members.
Send and Receive DTMF: How to send and receive DTMF in your app.
Call Statuses: Information about call statuses such as ringing, answered and so on.

All of Nexmo Client SDK tutorials: