The Voicemail Detection tool lets you configure an optional voicemail message or end the call, but the docs do not state that this message supports dynamic-variable interpolation. (elevenlabs.io)
ElevenLabs dynamic variables are documented for use in system prompts, first messages, and tool parameters/headers. The voicemail message field is not listed among supported targets. (elevenlabs.io)
Given the current documentation, there’s no official way to inject dynamic variables into the Voicemail Detection message. If you need confirmation or to request this feature, please contact Support. (help.elevenlabs.io)
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