A2P 10DLC Campaign Vetting Delays: Twilio cannot approve 10DLC Campaigns ourselves, and must rely on third parties who control our connections to carriers to sign off. These external processes are creating several week delays for our customers. We continue to escalate these issues and are working to reduce delays wherever possible. Further details will be shared in the Campaign Vetting Changes article as they become available.
No. You're able to verify non-Twilio phone numbers and use them to initiate outbound calls via our REST API. You are not obligated to use a Twilio number, however, if you want to be able to receive inbound calls you will need to have a Twilio number configured with a Voice Request URL.
To learn about the number verification process, please refer to the FAQ Adding a verified outbound caller ID with Twilio.