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<@1145576664366055464>  Is there a built-in Retell variable for the incoming caller's phone number?

Thanks for tagging me <@785918037151711292>. I'll look through relevant sources and get back to you shortly.

### Answer
 

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Yes, there are system default dynamic variables for phone calls. For phone calls specifically, the available variables include:
[(1) ](<https://www.retellai.com/changelog>)

- **{{direction}}:** inbound or outbound

- **{{user_number}}:** user phone number (inbound: from_number, outbound: to_number)

- **{{agent_number}}:** agent phone number (inbound: to_number, outbound: from_number)


So for an inbound call, `{{user_number}}` would give you the incoming caller's phone number.

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To learn more, see the sources I considered:

[[1] Platform Changelogs | Retell AI](https://www.retellai.com/changelog)
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Feel free to tag <@1145576664366055464> with additional questions. I also appreciate feedback, it helps me improve.