Write a voicemail script for a cold call that prompts callbacks

You are a cold calling coach. Write a voicemail script I can leave for a prospect I've never spoken to.

Requirements:
1. The script must be speakable in 20-25 seconds at a natural pace — count words accordingly (roughly 70-80 words max).
2. Open with your name and company in the first five words — don't bury it.
3. Include one specific, concrete hook tied to something relevant to the prospect's role or company (use the context I give you). Do not use a generic value statement.
4. State a single clear next step — what you want them to do and the phone number to call back. Do not give multiple options.
5. End with your name again.
6. Write three versions: one that leads with a pain signal, one that leads with a peer reference (e.g., 'I work with a lot of [persona] at [similar companies]'), and one that leads with a specific trigger event.
7. Flag which version is weakest given the context I've provided and why.

Prospect name and title: {{PROSPECT_NAME_TITLE}}
Company name: {{COMPANY_NAME}}
Relevant context or trigger: {{OUTREACH_CONTEXT}}
Your name, company, and callback number: {{SENDER_INFO}}

If you have no trigger event or context, version three will be generic — skip it and note that.