Hi, we are having super urgent issue....BYO incoming and outgoing calls are dropping instantly...480 error from VAPI... https://cdn.discordapp.com/attachments/1349838837630632017/1349838837949530213/Kepernyofoto_2025-03-13_-_21.15.18.png?ex=67d48ee1&is=67d33d61&hm=1132bc895058a75b553b542253b1d6724306bed4d764eef2eac4b193896805e7&

Hi there! I understand you're facing an urgent issue with BYO calls dropping instantly with a 480 error. Based on the call flow you shared, I can see there's both a 401 Unauthorized error followed by a 480 Temporarily Unavailable error. Let me help you troubleshoot this! 🔍 For the 401 Unauthorized error: 1. Check if your private key is correctly configured in the VAPI Dashboard 2. Verify the JWT token format is correct (header.payload.signature) 3. Ensure your SIP credentials are properly included in the authentication 4. Confirm there's no mismatch between the keys used to sign tokens and what's configured in VAPI For the 480 Temporarily Unavailable error: 1. Review any recent changes to your call workflows or configurations 2. Verify your SIP URI format and settings are correct 3. Check network configurations to ensure SIP traffic isn't being blocked 4. Inspect logs from both VAPI and your system for connection failures 5. Verify webhook URLs are correctly entered in the VAPI dashboard The sequence in your logs (401 followed by 480) suggests that after the authentication challenge (401), the subsequent authenticated attempt is failing with 480, which often indicates configuration or network connectivity issues. Let me know if any of these steps help identify the issue! Sources: - [Document 1](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1336360744916226168) - [Document 8](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1336414771309838448) - [Document 49](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1340082214146146435) - [Document 63](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1334238882660618250)

Call-ID: 0396974178c3e0547e8343b74ae8753c@3.145.110.153:9067

Hey, you need to pass the authentication credentials which are username and password here. Username has to be your SIP username whereas password can be any non-empty value.