How do I fix this?

To fix the "vonage connection failed" error, check your webhook configuration in Vonage: 1. Verify that the webhook URL in Vonage is correctly pointing to your Vapi endpoint 2. Ensure it's not pointing to a number, but to a URL that handles API requests 3. Review the call logs in your Vonage account for clues about the connection failure If the issue persists, check your SIP URI format and network configuration to ensure SIP traffic is allowed through your firewall. Source: - [Troubleshooting steps for "vonage connection failed" error in Vapi](https://discord.com/channels/1211482211119796234/1332470088078590023)

Ensure correct assistant ID configuration, verify server authentication, check logs for errors, test with a different Vonage number, and ensure no network..