A station is like a utility ID. A OneCall member can have as many Stations as they require. For example, the company might have multiple offices in different areas that need various stations/IDs.
We recommend that you set up Stations BEFORE Subscriptions. This is because, when setting up a Subscription, leaving the Stations field blank will automatically apply the subscription to all current stations, and all stations created in the future. Subscriptions cannot be edited or deleted, only made Inactive.