Quick Reference

Setting Name voicemail_message
Default Value Default Value
Recommended 15 to 25 second pre-recorded message
Impact Level High
Location Admin > Campaigns > [Campaign] > AMD Settings
ViciStack Module AMD Optimization

voicemail_message

What Voicemail Message Does

The audio file path or message to play when AMD detects an answering machine and is configured to leave a voicemail via amd_send_to_vmx. The message should be compelling, brief (under 25 seconds), and include a clear call to action and callback number.

| Center Size | Recommended Value | Notes |

| --- | --- | --- |

| 10–25 Agents | 15 to 25 second pre-recorded message | Start conservative, monitor for 48 hours before adjusting |

| 25–100 Agents | 15 to 25 second pre-recorded message | Scale gradually — larger operations amplify effects of misconfiguration |

| 100–500 Agents | 15 to 25 second pre-recorded message | Consult ViciStack optimization team for enterprise-scale tuning |

How to Change This Setting

  • Navigate to Admin > Campaigns

  • Select campaign

  • Find Voicemail Message field

  • Enter path to audio file on VICIdial server (e.g., /var/lib/asterisk/sounds/voicemail_campaign_a.wav)

  • Ensure file exists and is readable by Asterisk

  • Test playback from command line before deploying

  • Submit

Common Problems

File path wrong causes AMD to fail silently without leaving message

Message too long (over 30 seconds) gets cut off by voicemail systems

Poor audio quality sounds unprofessional — use professional recording studio or quality TTS

ViciStack Module

ViciStack’s AMD Optimization module automatically monitors and optimizes voicemail_message based on real-time performance data from your operation. Instead of manual tuning, ViciStack continuously analyzes call outcomes, agent performance, and contact rates to recommend and implement optimal values — often catching configuration drift before it affects your numbers.

Frequently Asked Questions

What does voicemail_message do in VICIdial? +

The audio file path or message to play when AMD detects an answering machine and is configured to leave a voicemail via amd_send_to_vmx. The message should be compelling, brief (under 25 seconds), and include a clear call to action and callback number.

What is the recommended value for voicemail_message? +

The recommended range for voicemail_message is 15 to 25 second pre-recorded message. The out-of-box default is . Note that optimal values vary by operation size, campaign type, and carrier — use ViciStack's automated tuning to find your exact optimal configuration.

Can ViciStack automatically optimize voicemail_message for me? +

Yes. ViciStack's AMD Optimization module monitors voicemail_message continuously and alerts you when the value drifts outside optimal range. On qualifying plans, ViciStack can automatically adjust this setting based on real-time performance data — no manual intervention required.

Related Settings

amd_send_to_vmx View setting → dead_trigger View setting → amd_type View setting → amd_agent_route View setting →

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Part of the Complete VICIdial Implementation Guide and VICIdial Performance Optimization Guide

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