You must top up your account to pay for your monthly usage, which includes phone calls, outbound text messages, phone numbers, and call recording storage. Anything transactional within smrtPhone is deducted from your credit balance.
Your credit balance is distributed across your entire team. This means that users who only use the system a little will only be charged a little, and those who use it a lot will be charged more. By charging only for what you use, we feel this is the fairest way to bill you.