Why can’t I call a user internally or transfer calls internally?

If you cannot call another user internally, this is usually because that user has no phone numbers or internal extensions in their personal channel stored.

To assign a phone number or extension to the relevant user, as an admin open the relevant user via the user overview so that you can see the routing of their personal channel.

Now drag either an extension or a phone number from the right to the left onto the routing. If you now try again to call the affected user directly or transfer a call there, a corresponding call button will also be displayed.