# LiveCommunicationKit Initiate and handle VoIP and cellular conversations, coordinate them with other communication apps and the system, and get ready to be a default calling or dialer app. ## Overview LiveCommunicationKit allows you to offer VoIP conversation functionalities in your app, and to integrate your communication services with other communication apps in the system. With LiveCommunicationKit, your app can: - Initiate and receive VoIP conversations - Forward cellular network conversations to the system Using LiveCommunicationKit in your app allows people to configure their device to use your app as the default dialer or calling app. ### Manage user privacy With a person’s permission, an installed health research app that uses entitlements may collect Speech Metrics data while your LiveCommunicationKit app is in use. To prevent this, set the information property list key to `NO`. > Important: When someone starts a conversation in your app that uses LiveCommunicationKit, your app provides the contact information of the recipient to the system. The system may use that information to indicate communication with that person as a suggestion in the Journal app, or in other apps that use the framework. ## Topics ### Essentials [Initiating VoIP conversations with LiveCommunicationKit](/documentation/LiveCommunicationKit/initiating-voip-conversations-with-livecommunicationkit) Let people initiate and receive VoIP conversations, and configure your app so it can be the default calling app on a person’s device. [Preparing your app to be the default dialer app](/documentation/LiveCommunicationKit/preparing-your-app-to-be-the-default-dialer-app) Let people configure their device to set your app as the default dialer app. ### Cellular network conversations [`class TelephonyConversationManager`](/documentation/LiveCommunicationKit/TelephonyConversationManager) An interface for initiating cellular network conversations. [`struct StartCellularConversationAction`](/documentation/LiveCommunicationKit/StartCellularConversationAction) The action that starts a cellular conversation using the default calling app. [`struct CellularService`](/documentation/LiveCommunicationKit/CellularService) A structure that represents the cellular service account to use for starting or joining a conversation. [`struct Handle`](/documentation/LiveCommunicationKit/Handle) A way to reach a participant, such as a phone number or email address. ### VoIP conversations [`class ConversationManager`](/documentation/LiveCommunicationKit/ConversationManager) An interface for managing and observing VoIP conversations. [`protocol ConversationManagerDelegate`](/documentation/LiveCommunicationKit/ConversationManagerDelegate) Methods for managing conversations and receiving VoIP conversation updates. [`class ConversationHistoryManager`](/documentation/LiveCommunicationKit/ConversationHistoryManager) An interface for managing and providing conversation history. [`class Conversation`](/documentation/LiveCommunicationKit/Conversation) A type that describes a video or audio conversation. ### Conversation actions [`class ConversationAction`](/documentation/LiveCommunicationKit/ConversationAction) A type that represents an action for a conversation. [`class EndConversationAction`](/documentation/LiveCommunicationKit/EndConversationAction) An action that removes the local participant from a conversation and stops all audio and video streams. [`class JoinConversationAction`](/documentation/LiveCommunicationKit/JoinConversationAction) An action for joining an incoming conversation. [`class MergeConversationAction`](/documentation/LiveCommunicationKit/MergeConversationAction) An action that merges two separate conversations into one conversation. [`class MuteConversationAction`](/documentation/LiveCommunicationKit/MuteConversationAction) An action that mutes or unmutes a conversation. [`class PauseConversationAction`](/documentation/LiveCommunicationKit/PauseConversationAction) An action that stops or restarts all audio and video streams for a conversation. [`class PlayToneAction`](/documentation/LiveCommunicationKit/PlayToneAction) An action that plays sequence of tones to indicate that a participant of a conversation interacted with the keypad. [`class SetTranslatingAction`](/documentation/LiveCommunicationKit/SetTranslatingAction) An action that starts or stops translation. [`class StartConversationAction`](/documentation/LiveCommunicationKit/StartConversationAction) An action that starts an outgoing conversation and causes the devices of a remote participant to ring. [`class UnmergeConversationAction`](/documentation/LiveCommunicationKit/UnmergeConversationAction) An action that separates two previosuly merged conversations. ### Conversation assistance [`protocol LiveAssistanceExtension`](/documentation/LiveCommunicationKit/LiveAssistanceExtension) The protocol you extend to provide live assistance services. [`enum LiveAssistance`](/documentation/LiveCommunicationKit/LiveAssistance) A namespace to collect APIs for use by container apps that provide live assistance services. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)