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# CXProviderDelegate

A collection of methods that a telephony provider object calls.

```
protocol CXProviderDelegate : NSObjectProtocol
```

## Overview

The [`CXProviderDelegate`](/documentation/CallKit/CXProviderDelegate) protocol defines a set of methods that are called by an object that represents a telephony provider it begins or resets, requests a transaction, performs an action, or an audio session changes its activation state.

## Topics

### Handling Provider Events

[`providerDidBegin(_:)`](/documentation/CallKit/CXProviderDelegate/providerDidBegin(_:))

Called when the provider begins.

[`providerDidReset(_:)`](/documentation/CallKit/CXProviderDelegate/providerDidReset(_:))

Called when the provider is reset.

### Determining the Execution of Transactions

[`provider(_:execute:)`](/documentation/CallKit/CXProviderDelegate/provider(_:execute:))

Called when a transaction is executed by a call controller.

### Handling Call Actions

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-2lem5)

Called when the provider performs the specified start call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-h4in)

Called when the provider performs the specified answer call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-9a0m)

Called when the provider performs the specified end call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-947b1)

Called when the provider performs the specified set held call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-4u3yu)

Called when the provider performs the specified set muted call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-9masw)

Called when the provider performs the specified set group call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-4htxt)

Called when the provider performs the specified play DTMF (dual tone multifrequency) call action.

[`provider(_:perform:)`](/documentation/CallKit/CXProviderDelegate/provider(_:perform:)-43atg)

Called when the provider performs the specified set translation action.

[`provider(_:timedOutPerforming:)`](/documentation/CallKit/CXProviderDelegate/provider(_:timedOutPerforming:))

Called when the provider performs the specified action times out.

### Handling Changes to Audio Session Activation State

[`provider(_:didActivate:)`](/documentation/CallKit/CXProviderDelegate/provider(_:didActivate:))

Called when the provider’s audio session is activated.

[`provider(_:didDeactivate:)`](/documentation/CallKit/CXProviderDelegate/provider(_:didDeactivate:))

Called when the provider’s audio session is deactivated.


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