Ezell, T. (2012). Cisco Unified Communications Manager 8: Expert administration cookbook : over 110 advanced recipes to effectively and efficiently configure and manage Cisco Unified Communications Manager. Packt Pub..

Ezell, Tanner. Cisco Unified Communications Manager 8: Expert Administration Cookbook : Over 110 Advanced Recipes to Effectively and Efficiently Configure and Manage Cisco Unified Communications Manager. Birmingham ; Mumbai: Packt Pub., 2012.

Ezell, Tanner. Cisco Unified Communications Manager 8: Expert Administration Cookbook : Over 110 Advanced Recipes to Effectively and Efficiently Configure and Manage Cisco Unified Communications Manager. Packt Pub., 2012.