### Answer For your use case with Yelp inbound text verification and customer communication, you'll need to enable SMS capabilities on your number first. [(1) ]() What you need: 1. Enable SMS on your Twilio number - If you're using your own Twilio number with Retell, click "Setup SMS Function" in Advanced Add-Ons and provide your Twilio Account SID and Auth Token. 2. For two-way SMS conversations (receiving Yelp verification codes and communicating with customers) , you need to: - Attach a chat agent to the number - Enable the

useInboundWebhookOnNumberCalled

option to receive inbound SMS - Use the inbound webhook to filter and add context to inbound SMS Important notes: - Current SMS capabilities are limited to US numbers only - If using a Retell Twilio number, you'll need to go through the A2P 10DLC registration process (business profile, brand approval, SMS campaign approval) which can take 2-3 weeks - If using your own Twilio number, make sure it already has SMS capabilities enabled and is A2P 10DLC compliant For receiving Yelp verification texts specifically, the inbound webhook will let you capture those messages when they arrive.

​ To learn more, see the sources I considered: [[1] Send & receive SMS](https://docs.retellai.com/deploy/enable-sms) ​

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