---
title: "dialVoiceCall(toPhoneNumber:completionHandler:)"
framework: SafetyKit
role: symbol
role_heading: Instance Method
platforms: [iOS 16.0+, iPadOS 16.0+, Mac Catalyst 16.0+, macOS 13.0+, watchOS 10.1+]
path: "safetykit/saemergencyresponsemanager/dialvoicecall(tophonenumber:completionhandler:)"
---

# dialVoiceCall(toPhoneNumber:completionHandler:)

Request the system to dial a voice call on behalf of someone involved in a crash.

## Declaration

```swift
func dialVoiceCall(toPhoneNumber phoneNumber: String, completionHandler handler: @escaping @Sendable (Bool, (any Error)?) -> Void)
```

```swift
func dialVoiceCall(toPhoneNumber phoneNumber: String) async throws -> Bool
```

## Parameters

- `phoneNumber`: The phone number to dial.
- `handler`: The completion handler invoked with the status of the voice call.

## Discussion

Discussion important: You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration: func dialVoiceCall(toPhoneNumber phoneNumber: String) async throws -> Bool For information about concurrency and asynchronous code in Swift, see Calling Objective-C APIs Asynchronously. Apps running in the background or foreground can request to dial a voice call without confirmation. The system doesn’t allow emergency numbers such as 112, 911, or 999. The system accepts requests only if the app is authorized to receive and handle Crash Detection events, and only for a limited time after a Crash Detection event occurs.

## See Also

### Placing a voice call

- [SAEmergencyResponseManager.VoiceCallStatus](safetykit/saemergencyresponsemanager/voicecallstatus.md)
- [delegate](safetykit/saemergencyresponsemanager/delegate.md)