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### Answer Based on your description, it seems like your issue might be related to the billing limits even after you increased them. A similar issue was discussed where a user faced problems even after adjusting their billing limit [(1)]() . Here are a few steps to try: 1. **Verify Billing Limit**: Double-check that your new billing limit is correctly set in the billing tab of the dashboard. 2. **Re-enter Payment Information**: Sometimes, re-entering your credit card details and refreshing the page might resolve the issue. 3. **Contact Vapi Support**: If re-entering the payment information doesn't help, it might be necessary to reach out to Vapi support to ensure there are no backend discrepancies. If your assistants are still hanging up, ensure there's no configuration that might unintentionally trigger a hang-up, such as the

silenceTimeoutSeconds

or

maxDurationSeconds

settings [(2)]() [(3)]() .