gotoxy
01/23/2026, 8:43 PMVapi Support Bot
01/23/2026, 8:44 PM1. Go to Settings → Billing.
2. Find "Reserved Concurrency (Call Lines)" and increase the limit.
If the issue persists after raising the limit, please contact Vapi Support for further investigation, as this may indicate an unexpected system issue.
Sources:
- [Understanding Call Concurrency](https://docs.vapi.ai/calls/call-concurrency)
- [Outbound Campaigns Overview](https://docs.vapi.ai/outbound-campaigns/overview)Chiranjeet Mishra
01/24/2026, 10:29 PM