Yeah, a lot of people start with Twilio, but once you begin scaling or running higher call volumes, it’s pretty common to explore alternatives like Telnyx or others. From what I’ve seen working on different builds, Telnyx is probably the most popular alternative right now, mainly because it gives you more control over routing, better pricing, and often lower latency since it runs on a private network instead of public internet routing. That makes a noticeable difference for AI call quality and responsiveness. Telnyx Telxi That said, it really depends on your use case: Twilio → easiest to set up, very stable, great ecosystem Telnyx → better for scaling, cost optimization, and deeper control Other options (like Bandwidth, Vonage, etc.) exist, but most AI voice setups still lean toward Twilio or Telnyx because of compatibility What I usually recommend is not fully switching immediately, run both in parallel and route traffic between them. That way you can compare deliverability, latency, and stability in real conditions before committing. If you’re running Retell at scale, the provider you choose actually impacts performance a lot more than people think, especially with call quality and how “natural” the AI feels.