Sitel Group Share: Call Center Visit Website Request Info 11221 Outlet Dr. Knoxville, TN 37932 (865) 347-6116 LinkedIn Facebook TikTok Hours: Monday-Friday: 8am-5pm About Map About About Sitel Group®? As one of the largest global providers of customer experience (CX) products and solutions, Sitel Group® empowers brands to build stronger relationships with their customers b What's Nearby? Distance: 5 10 15 20 25 50 mi.