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# CXCallUpdate

An encapsulation of new and changed information about a call.

```
class CXCallUpdate
```

## Overview

[`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) objects are used by the system to communicate changes to calls over time. Not every property on a [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object must be set each time, as each object includes only new and changed information. For example, when a call is started, only some properties may be known and included in the first [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object sent to the system, such as [`localizedCallerName`](/documentation/CallKit/CXCallUpdate/localizedCallerName). Later in the same call, other properties may change; for example, a call may be upgraded from audio only to audio and video, which would be reflected by a new [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object with its [`hasVideo`](/documentation/CallKit/CXCallUpdate/hasVideo) property set to <doc://com.apple.documentation/documentation/Swift/true>.

When an incoming call is received, you construct a [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object specifying a [`localizedCallerName`](/documentation/CallKit/CXCallUpdate/localizedCallerName) and pass that to the [`reportNewIncomingCall(with:update:completion:)`](/documentation/CallKit/CXProvider/reportNewIncomingCall(with:update:completion:)) method to notify the telephony provider.

When an active call is updated, you construct a [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object specifying any updated information and pass that to the [`reportCall(with:updated:)`](/documentation/CallKit/CXProvider/reportCall(with:updated:)) method. For example, if a user changes their contact information during a call, you could notify the telephony provider of this change using a new [`CXCallUpdate`](/documentation/CallKit/CXCallUpdate) object with the new value set to its [`remoteHandle`](/documentation/CallKit/CXCallUpdate/remoteHandle) property.

## Topics

### Accessing Call Update Attributes

[`localizedCallerName`](/documentation/CallKit/CXCallUpdate/localizedCallerName)

The localized name of the caller.

[`remoteHandle`](/documentation/CallKit/CXCallUpdate/remoteHandle)

The handle for the remote party (for an incoming call, this is the caller; for an outgoing call, this is the callee).

[`hasVideo`](/documentation/CallKit/CXCallUpdate/hasVideo)

A Boolean value that indicates whether the call includes video in addition to audio.

[`supportsGrouping`](/documentation/CallKit/CXCallUpdate/supportsGrouping)

A Boolean value that indicates whether the call can be grouped with other calls.

[`supportsUngrouping`](/documentation/CallKit/CXCallUpdate/supportsUngrouping)

A Boolean value that indicates whether the call can be ungrouped from other calls.

[`supportsHolding`](/documentation/CallKit/CXCallUpdate/supportsHolding)

A Boolean value that indicates whether the call can be placed on hold or removed from hold.

[`supportsDTMF`](/documentation/CallKit/CXCallUpdate/supportsDTMF)

A Boolean value that indicates whether the call can send DTMF (dual tone multifrequency) tones via hard pause digits or in-call keypad entries.


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