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