### Answer
Concurrency Burst can be enabled or disabled from the
Settings > Limits page in your dashboard. [(1) ](
)
The sources don't specify particular requirements or restrictions that would prevent you from enabling this feature. If the toggle isn't working for you, here are a few things to check:
- Ensure you have the appropriate account permissions (Admin or Developer role) to modify settings
- Verify your billing/plan status is active
If you're still unable to enable it after checking these, I'd recommend reaching out to Retell support directly, as this may be an account-specific issue.
Check out these potentially useful sources:
- [Understand concurrency & limits](
)
- [Documentation](
)
- [Hire certified Retell partner](
)