Case Study: T-Mobile achieves 28% revenue growth with InsideSales (XANT)

T-Mobile uses AI powered by Real Data to boost revenue by 28%

T‑Mobile partnered with InsideSales to scale a new team of 200 inside account managers who each owned 1,000+ accounts. Reps struggled with low and uneven productivity, inconsistent messaging, and poor prioritization—50% of reps drove 80% of activity while more than 50,000 high‑likelihood accounts were never engaged. InsideSales’ Playbooks and AI scoring capabilities (powered by Real Data) were chosen to address these gaps.

InsideSales implemented Playbooks (templatized Plays with emails, voicemails and call scripts) to standardize workflows and two AI models—closability and contactability—to prioritize accounts and leads. The combined solution boosted activity and focus, delivering measurable results: +26% deal size, +200% close rate, 25% shorter sales cycles and +28% revenue growth for T‑Mobile.

T-Mobile

Jonathan Blood

Vice President