Placing AI Phone Calls

I’m curious if OpenClaw or similar agentic AI can make phone calls. From what I learned from a quick search, it looks like agents can make calls using external tools. I put together a list of platforms which facilitate this.

• https://www.retellai.com/
• https://www.twilio.com/en-us/solutions/agent-productivity
• https://www.plivo.com/ai/