A2P 10DLC Campaign Vetting Delays: We are experiencing delays while vetting 10DLC campaigns. Our third party is reviewing campaigns manually, and due to the high volume of requests, a queue has built up. Campaign reviews are expected to take longer. Twilio is working with the provider to help expedite this process. New details will be shared in our incident report as soon they become available.

Why am I charged for calls to dead/not-in-service phone numbers?

We do our best to verify if phone numbers are valid and also try to save you money by refusing to call numbers we know are impossible. However, we've discovered that it's better for us to trust that our users know more about the phone numbers they are trying to call than we do.

By default, Twilio does not "listen" to your calls. This means that Twilio's system is only able to know if audio is being transferred, or not, and is generally not going to take actions based on the contents of that audio. In short, Twilio considers a call to be completed if audio data is returned, even if that audio data is an out-of-service message.

If you have multiple cases of calls made to invalid numbers, we recommend creating a database of these invalid numbers so that your app does not call them in the future.

See also: Will I be charged for calls to disconnected numbers 

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