The Cisco Unified IP Phone 6900 Series is a new and innovative portfolio of endpoints that deliver affordable, business-grade, voice communication services to customers worldwide. Six models are available: the Cisco Unified IP Phone 6901 (trimline), Cisco Unified IP Phone 6911 (one -line), Cisco Unified IP Phone 6921 (two-line), Cisco Unified IP Phone 6941 (four-line) Cisco Unified IP Phone 6945 (four -line), and Cisco Unified IP Phone 6961 (twelve-line).