VAPI makes a numerous calls attemps if the user hu...
# supportk
Kiril
07/26/2025, 11:39 PMI'm making an API call to https://api.vapi.ai/call which return 201, i.e. is successfull, but the thing is that if the person on the other side hung up, it calls them 3 more times. Do you have an idea what could be it?
h
Hilal @ UnitZero AI
07/27/2025, 5:29 AMVapi retries calls if it thinks the call didn’t complete properly. When the callee hangs up, it may trigger extra attempts due to:
Retry/backoff settings on the assistant
Webhook logic not confirming the call ended
External automation (CRM/n8n) re-triggering the call
Check the endedReason in the webhook payload, disable any retry/backoff plan in your assistant, and ensure your webhook responds with 200 OK to stop extra calls.
k
Kings_big💫
07/27/2025, 7:05 AMTo prevent this, use a webhook to check the endedReason and avoid re-triggering the call in your backend logic..
k
Kiril
07/28/2025, 9:12 AMand it is not only that, in the beginning the problem started when I did calls fromn UK to BG number
Kiril
07/28/2025, 9:13 AMnow it happens even from UK to UK number
Kiril
07/28/2025, 9:13 AMand also the agent started speak very slowly and occasionally increase speed
Kiril
07/28/2025, 9:14 AMi think you have a lot of bugs in your platform
Kiril
07/28/2025, 10:40 AMI don't how it happened, but now it got fixed somehow by itself, but still I'd like to know what the problem was because i'm worried that it might happen again and i'm working with businesses and this would be vary bad
k
Kings_big💫
07/28/2025, 1:00 PMGlad it fixed
r
Ricky
08/26/2025, 10:58 AMHey @Kiril @Hilal @ UnitZero AI
Unfortunately I am facing the same issue. If my customer hangs up a call I made (POST /call), Vapi retries the call in a matter of a few minutes. This surprised me as I return a blanket 200 to all websocket messages, and I have no retry logic in my own server message handler.
This is an issue for me because I would not like to retry calls when if they fail under certain conditions. I would be very happy if you could provide directions.
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