You can now pass a dynamic audio file directly into your Custom Ringless Voicemail (RVM) webhook using a new audio= parameter.
This update makes it easier to send dynamically generated or externally hosted audio files without pre-configuring them inside the platform.
🔧 What’s New
You can now append the following parameter to your Custom RVM webhook URL:
&audio=YOUR_AUDIO_FILE_URL
When included, the system will:
- Pull the dynamic MP3 merge field into the Call Loop webhook URL
- Use that merge field as the voice audio
- Send the Ringless Voicemail to the specified contact
⚙️ Example
Webhook URL:
If the request is successful, you will receive a confirmation response including a message ID indicating the voicemail has been queued.
🎯 Why This Matters
This enhancement allows you to:
Send fully dynamic RVM audio
Use AI-generated or personalized audio files
Trigger voice drops from external systems
Integrate more flexibly with CRMs and automation platforms
No need to pre-select static audio files in your campaign.
⚠️ Requirements
The audio file must be publicly accessible
Supported format: MP3
File must be reachable at the time of the request
This update provides greater flexibility and automation control for developers and advanced users leveraging Custom RVM triggers.
For setup assistance, please contact support or refer to the API documentation.