---
title: callEventHandler
framework: coretelephony
role: symbol
role_heading: Instance Property
path: coretelephony/ctcallcenter/calleventhandler
---

# callEventHandler

A closure dispatched when a call changes state.

## Declaration

```swift
var callEventHandler: ((CTCall) -> Void)? { get set }
```

## See Also

### Responding to Cellular Call Events

- [currentCalls](coretelephony/ctcallcenter/currentcalls.md)