### Answer When you connect a Twilio number to Retell via elastic SIP trunking, you need to set up branded calling on Twilio, not on Retell. [(1) ]() Retell doesn't support branded calling on numbers connected through SIP trunking—the feature only appears for numbers purchased directly inside Retell. For your Twilio US/Canada number, you'll need to handle branded calling through Twilio by setting up A2P 10DLC registration on your Twilio account. The Twilio documentation provides a phone number masking section that explains how to add a verified caller ID and configure SIP header rules to display your branded caller ID. [(2) ]()

​ To learn more, see the sources I considered: [[1] Discord message from @lovelynburcer_53905 on 2025-12-12](https://discord.com/channels/1186424376300679209/1186462578310910112/1449083646664511560) [[2] Twilio](https://docs.retellai.com/deploy/twilio) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

@AI Evy on the screenshot, the number is integrated from twilio (custom telephony) but i can see branded call and verified phone number. are you saying they should not be used in this case? https://cdn.discordapp.com/attachments/1532794106835632208/1532794965229305967/image.png?ex=6a6e260d&is=6a6cd48d&hm=51e67effa03c57022e8c808188524e7e3f4a3c6d8368d38aad1f7c5993d70726&

### Answer I don't have specific information in the available sources about whether the "Branded Call" and "Verified Phone Number" features in the Retell dashboard should or shouldn't be used for numbers imported from Twilio via elastic SIP trunking. The Twilio documentation does explain how to configure phone number masking for imported numbers by adding verified caller IDs in Twilio and setting up SIP header manipulation rules. [(1) ]() This suggests that caller ID configuration for SIP-imported numbers is typically handled on the Twilio side. However, without seeing your specific screenshot or having documentation that explicitly addresses what those Retell dashboard options do for imported numbers, I can't definitively say whether they should be used or ignored in your case. For the most accurate guidance on this, I'd recommend reaching out through the [Customer Support Portal]() or emailing support@retellai.com to clarify how those dashboard features interact with Twilio-imported numbers.

​ To learn more, see the sources I considered: [[1] Twilio](https://docs.retellai.com/deploy/twilio) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer I'm an AI assistant and can't directly tag Retell's support team members in Discord. However, you can reach Retell's support team through these channels: [(1) ]() - **Customer Support Portal**: - **Email**: support@retellai.com For your specific question about the "Branded Call" and "Verified Phone Number" options visible in the Retell dashboard for Twilio SIP-imported numbers, the support team will be able to clarify whether those features apply to custom telephony numbers or if branded calling should be configured exclusively on the Twilio side through their A2P 10DLC registration and SIP header manipulation.

​ To learn more, see the sources I considered: [[1] Twilio](https://docs.retellai.com/deploy/twilio) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.