Twillio error - Vapi not handling callback
# supportm
marc200437
07/08/2025, 1:59 PMEverything was working yesterday. Today I have Vapi showing Ended Reason = Customer did not answer and Twillio showing Error - 31920 (Stream - WebSocket - Handshake Error): The server has returned an HTTP code different from 101 to the connection
My test call rings my phone and as soon as I answer it the call drops.
marc200437
07/08/2025, 2:30 PMsubmitted support ticket as well. My org ID is eab08c42-4b58-4d49-83f9-4a29d1d47103
b
barelledboi
07/08/2025, 3:00 PMHey any updates here?
I have the same handshake error for TWILIO #.... outbound calls.
c
Chiranjeet Mishra
07/09/2025, 7:53 AMHey! To help track down this issue, could you share:
- The call ID
- When exactly this happened (the timestamp)
- What response you expected to get
- What response you actually got instead
This would really help us figure out what went wrong!
3 Views