### Answer
I don't have information in the available sources about setting spending limits on a per-phone-number basis.
However, there is a community feature request discussing per-phone-number concurrency limits [(1) ](
) [(2) ](
) , which would allow limiting how many concurrent calls a specific phone number can handle. This would indirectly help control costs by capping simultaneous usage, but it's not the same as a direct spending limit.
For spending controls or budget caps on phone numbers, I'd recommend checking out these resources:
- [Streamline Calls with Retell AI's Batch Dialer | Retell AI](
)
- [Platform Changelogs | Retell AI](
)
Would you like a general answer based on my knowledge instead?