How to Use Telnyx number for Retell Voice AI Agent

Note: This article is in conjunction with the following articles: 

1. Understanding PBX for Voice AI, 
2. Overflow and After-Hours Voice AI Receptionist,
3. Understanding Call Forwarding to Voice AI Agent.
4. Guide and best practices for purchasing phone numbers for Voice AI.

Make sure to read these articles before reading the current article.

In this article (better call it an 87-page-long document with screenshots and configuration recommendations), I will show you step by step how to purchase a phone number from a carrier like ‘Telnyx’ and then use that number in Retell AI for your Voice agents.

Purchasing a Telnyx number is not as simple as selecting a number and clicking the purchase button. It is quite a complicated process, especially for first-time users.

Note: If you want to learn how to use a Twilio number for Retell Voice AI Agent then checkout this article: Using Twilio with Retell AI via SIP Trunking for Voice AI Agents.

The 10,000 foot view of purchasing and using programmable phone numbers from Telnyx.