hi there. So I have a redirect call tool and when I go to my VAPI dashboard, I can totally make a (small) change to the tool and save the changes. The dashboard shows a message "Tools has been updated successfully". This tells me that the redirect call tool configuration is correct. I can also register and update this tool using API and it works without a hitch... The other tools I registered work just fine. Except the redirect call tool. In the assistant, when the time comes to redirect the call, I see that the assistant successfully calls my "redirectCall" tool with the right argument but the call transfer does not happen and my call to assistant simply hangs up. The image showing a successful call to my customer "redirectCall" tool is attached. Why does my call hang up then? Why is not being connected to the destination of "redirectCall"? Hm... Thanks https://cdn.discordapp.com/attachments/1365428477603614781/1365428478186618941/image.png?ex=680d45dd&is=680bf45d&hm=fbb1f381206093d1ceb62ec6927f00c243e0a77d7015992b4a6fb6e8961f3ad9&

Try disabling the "call control server message" option in your assistant's advanced settings. This setting can interfere with VAPI's call forwarding logic, causing calls to hang up even when the redirectCall tool reports success. If that doesn't resolve the issue, check if you have the

phone-call-control

server event enabled, as this can override VAPI's call forwarding functionality. Sources: - [Discord conversation about call control server message](https://discord.com/channels/1211482211119796234/1339614362742165606) - [Discord conversation about phone-call-control event](https://discord.com/channels/1211482211119796234/1335869152535121960)

Message marked as helpful by @mrincognito! 🎉

Thanks, problem solved.

Nice

Message marked as helpful by @[LE]! 🎉

Marking this ticket as Solved ✅