If a SIM card is no longer in use you can temporarily suspend the card until it's needed again. To suspend a card follow these few steps. 1. Select the SIM card you want to suspend. You are also able to select a range of SIM cards and then suspend all of them in on go. 2. Press the suspend button at the top of the page. 3. Suspending cards will take a few seconds and you will be notified once the suspension is completed. The video clip below shows how to Activate and Suspend a SIM Card.