---
title: "channelManager(_:receivedEphemeralPushToken:)"
framework: pushtotalk
role: symbol
role_heading: Instance Method
path: "pushtotalk/ptchannelmanagerdelegate/channelmanager(_:receivedephemeralpushtoken:)"
---

# channelManager(_:receivedEphemeralPushToken:)

Tells the observer that the app received a push token after you create a channel manager.

## Declaration

```swift
func channelManager(_ channelManager: PTChannelManager, receivedEphemeralPushToken pushToken: Data)
```

## Parameters

- `channelManager`: The channel manager.
- `pushToken`: The ephemeral push token.

## Mentioned in

Creating a Push to Talk app

## Discussion

Discussion The framework provides a token to this method after you initialize PTChannelManager. The token isn’t active until a person joins the channel. If they leave the channel, you need to wait until they rejoin to resume notifications. important: Don’t cache device tokens in local storage. The Apple Push Notification service issues a new token when a person restores a device from a backup, installs your app on a new device, or reinstalls the operating system. When you send push notifications, the apns-topic header field needs to contain your app’s bundle identifier with the .voip-ptt suffix.