{"type": "article", "title": "Sierra's Bret Taylor puts a four-year clock on the AI phone agent shift", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/sierra-s-bret-taylor-puts-a-four-year-clock-on-the-ai-phone-agent-shift", "original_source": "https://runtimewire.com/article/sierra-s-bret-taylor-puts-a-four-year-clock-on-the-ai-phone-agent-shift", "published": "2026-06-23T20:30:07+00:00", "accessed": "2026-06-25", "id": "sierra-s-bret-taylor-puts-a-four-year-clock-on-the-ai-phone-agent-shift"}