When your project balance reaches zero, your account will become suspended. While suspended, you will no longer be able to make and receive phone calls or send and receive SMS messages.
If your account becomes suspended due to zero or negative balance, you can manually add funds to refill your Twilio project. To prevent future suspensions due to balance, we recommend setting an automatic recharge trigger.
We will continue to bill your project for 60 days for any phone numbers you have already purchased. If you pay off your balance and fund your project with a minimum of $20, you’ll be able to use your phone numbers again. After 60 days, if you haven't replenished your Twilio balance, we may close your project and return your phone numbers to our pool of available numbers.