Suggestion:
Check if there have been any recent changes to your SIP trunk or webhook configurations, as misconfigurations here are a common cause of outbound calls being ignored or failing with errors in Vonage.
Action step: Review your Vonage SIP trunk settings and ensure all numbers are properly registered and that your webhook endpoints are reachable.
If the issue persists, gather a call ID from a failed attempt and contact support for deeper investigation, as this can sometimes be an intermittent platform or network issue ([see troubleshooting guidance](
https://discord.com/channels/1211482211119796234/1372358449761091584)).
Source:
- [Vapi outbound call not triggering (Discord)](
https://discord.com/channels/1211482211119796234/1372358449761091584)