# Unsubscribe a callback function when an Connect Customer agent workspace contact turns to Connecting state
<a name="3P-apps-contact-events-connecting-unsub"></a>

Unsubscribes the callback function from Connecting event in the Connect Customer agent workspace.

 **Signature** 

```
offConnecting(handler: ContactConnectingHandler)
```

 **Usage** 

```
contactClient.offConnecting(handler);
```