ElevenAgents Finds Voice Wins Complex Calls

This makes a strong case for routing customers by conversation complexity rather than forcing every issue into chat.

• –Voice success rates were 10.9 percentage points higher for conversations exceeding two minutes.
• –Successful long voice conversations averaged 4.6 minutes versus 7 minutes in chat.
• –Developers need low latency, natural turn-taking, emotional adaptation, tool use, and persistent context for voice to deliver this advantage.
• –The findings are compelling but correlational: conversation length is only an imperfect proxy for complexity, and success criteria varied by business.