Decision Framework: Voice or Text?

Use Voice When:

  • Urgency is high (customer calling signals need for immediate resolution)
  • Emotion is involved (complaints, sensitive topics, empathy required)
  • Complexity requires back-and-forth (scheduling, troubleshooting, customization)
  • Accessibility matters (elderly, visually impaired, hands-free scenarios)
  • Relationship-building is goal (sales, consultative interactions)

Use Text When:

  • Information is straightforward (FAQs, hours, locations)
  • Visual content is essential (images, charts, step-by-step instructions)
  • User in public space (privacy concerns about speaking)
  • Asynchronous interaction is acceptable (no immediate response needed)
  • Documentation is required (confirmations, receipts, reference material)

Use Hybrid When:

  • Journey spans simple and complex moments
  • User preferences vary across customer base
  • Cost optimization requires routing simple queries to text
  • Competitive differentiation comes from seamless experience