Luke
11/15/2025, 1:05 AMVapi Support Bot
11/15/2025, 1:07 AMfirstMessageMode to "assistant-waits-for-user". This delays the assistant's speech until voicemail detection completes:
json
{
"firstMessageMode": "assistant-waits-for-user",
"voicemailDetection": {
"provider": "vapi",
"backoffPlan": {
"startAtSeconds": 1,
"frequencySeconds": 2.5,
"maxRetries": 6
}
}
}
This approach prevents the intro from playing until voicemail detection has a chance to run first ([documentation](https://docs.vapi.ai/calls/voicemail-detection)).
Source:
- [Voicemail Detection | Vapi Documentation](https://docs.vapi.ai/calls/voicemail-detection)Luke
11/15/2025, 1:08 AMLuke
11/15/2025, 1:09 AMLuke
11/23/2025, 6:00 PMLuke
11/23/2025, 6:00 PMChiranjeet Mishra
12/04/2025, 9:10 AM