Case Study: Oi Telecom achieves one-to-one marketing, 1,000%+ online sales growth and $3.5M call center savings with Ensighten

Ensighten’s Agile Marketing Platform™ delivers one-to-one marketing and superior digital experiences to Oi’s customer base

Oi Telecom, Brazil’s largest telecom with 74.5 million customers, needed to deliver personalized, consistent experiences across search, shopping, billing and support while cutting massive call-center costs (over $1B) and overcoming a fragmented web architecture of third‑party iframes that caused inaccurate analytics and an incomplete customer view.

Oi deployed Ensighten’s Agile Marketing Platform—using Ensighten Manage tag management and the Ensighten Data Layer—to unify data across vendors, reliably implement Adobe Analytics, and eliminate iframe double‑counting. The platform enabled one-to-one marketing, faster deployments and better QA, driving dramatic outcomes: website sales outpaced retail stores, visitor satisfaction hit 99%, online sales surged (over 1,000%), call-center costs dropped by $3.5M, and analytics and deployment efficiency significantly improved.

OI Telecom

Paul Lima

Managing Partner