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# CXCallDirectoryExtensionContext

A programmatic interface for adding identification and blocking entries to a Call Directory app extension.

```
class CXCallDirectoryExtensionContext
```

## Overview

The system doesn’t initialize [`CXCallDirectoryExtensionContext`](/documentation/CallKit/CXCallDirectoryExtensionContext) objects directly, but instead passes them as arguments to the [`CXCallDirectoryProvider`](/documentation/CallKit/CXCallDirectoryProvider) instance method [`beginRequest(with:)`](/documentation/CallKit/CXCallDirectoryProvider/beginRequest(with:)).

## Topics

### Setting the Delegate

[`delegate`](/documentation/CallKit/CXCallDirectoryExtensionContext/delegate)

Sets a delegate that can handle request failures for the Call Directory extension context object.

### Adding Entries

[`addIdentificationEntry(withNextSequentialPhoneNumber:label:)`](/documentation/CallKit/CXCallDirectoryExtensionContext/addIdentificationEntry(withNextSequentialPhoneNumber:label:))

Adds an identification entry with the specified phone number and label.

[`addBlockingEntry(withNextSequentialPhoneNumber:)`](/documentation/CallKit/CXCallDirectoryExtensionContext/addBlockingEntry(withNextSequentialPhoneNumber:))

Adds a blocking entry with the specified phone number.

### Removing Entries

[`removeAllBlockingEntries()`](/documentation/CallKit/CXCallDirectoryExtensionContext/removeAllBlockingEntries())

Removes all stored blocking entries.

[`removeAllIdentificationEntries()`](/documentation/CallKit/CXCallDirectoryExtensionContext/removeAllIdentificationEntries())

Removes all stored identification entries.

[`removeBlockingEntry(withPhoneNumber:)`](/documentation/CallKit/CXCallDirectoryExtensionContext/removeBlockingEntry(withPhoneNumber:))

Removes a blocking entry that contains the specified phone number.

[`removeIdentificationEntry(withPhoneNumber:)`](/documentation/CallKit/CXCallDirectoryExtensionContext/removeIdentificationEntry(withPhoneNumber:))

Removes an identification entry that contains the specified phone number.

### Completing Requests

[`isIncremental`](/documentation/CallKit/CXCallDirectoryExtensionContext/isIncremental)

A Boolean value that indicates whether the request provides data incrementally.

[`completeRequest(completionHandler:)`](/documentation/CallKit/CXCallDirectoryExtensionContext/completeRequest(completionHandler:))

Completes the request to the extension context.

### Types

[`CXCallDirectoryPhoneNumber`](/documentation/CallKit/CXCallDirectoryPhoneNumber)

A value that represents a phone number consisting of a country calling code followed by a sequence of digits.

[`CXCallDirectoryPhoneNumberMax`](/documentation/CallKit/CXCallDirectoryPhoneNumberMax)

The maximum allowable value for a phone number.


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