How does urgency escalation work (threshold 4-5)?

For every exchange, the AI rates urgency from 1 to 5: "a pipe flooding the kitchen" scores 5, "a quote request for spring" scores 2. As soon as the score reaches the threshold — 4 by default, adjustable per line — you're alerted instantly: push notification and text with the summary, and on the Pro tier, the live call transfers to your mobile. You decide what's worth interrupting you, and the threshold changes in two clicks.