This is Cisco's official, comprehensive self-study resource for preparing for the new ICOMM exam - the only exam needed to gain CCNA Voice certification, now an essential prerequisite for CCNP Voice certification. Top Cisco instructor Jeremy D. Cioara presents every objective concisely and logically, with extensive teaching features that promote retention and understanding. Readers will find: " Pre-chapter quizzes to assess knowledge upfront and focus study more efficiently " Foundation topics sections that explain concepts and configurations and link theory to actual configuration commands " Key topics sections calling attention to every figure, table and list that candidates must know " Exam Preparation sections " Exam-realistic questions on CD About 80% of this edition's content is brand-new, reflecting the new exam's massive revision, reorganization and expansion. In addition to Cisco CallManager Express, this book now covers Cisco Unified Communications Manager (CUCM), CUCM Express, Unity Connection, Unified Presence and network infrastructure considerations. Specific topics added in this edition include: " CUCM/CUCM Express administration " Managing endpoints and end-users with CUCM " CUCM dial plan management " CUCM/CUCM Express mobility features " Voicemail integration with Unity Connection " Unified Presence support " Network infrastructure management/troubleshooting " Unity Connection management/troubleshooting.