Build when:
- Voice AI is part of the SaaS product you sell
- You need full IP ownership
- Use case is bespoke and no agency template fits
- You have engineering capacity and want to retain it
Buy (agency) when:
- You're an operating business using voice AI as a tool
- You want to ship in 3 weeks, not 3 months
- Compliance posture matters and you don't want to build it
- You don't want an ongoing operations function on your team
Buy (tool) when:
- Use case is simple and a self-service template fits
- Budget is very low ($150–$500/month)
- You're fine handling configuration and operations yourself
Frequently Asked Questions
- How do I know which path I'm on?
- If you're a software company, build. If you're an operating business, buy. The split is that simple for 90% of cases.