There are a few good resources that will help you succeed with this exam. The list here is not complete by any means. You should feel free to use the resources that will help you learn the topics.
The Cisco Learning Network is a website dedicated to Cisco Certifications. Here you’ll find the exam that Cisco offers and the other resources. Some of the areas are Study groups, Questions and answers, and general help with the Certification process. In order to fully utilize this site you will need to create a login.
Cisco Press Authorized Self-Study Guide: Implementing Cisco Unified Communications Manager Part 2 (CIPT2) by Chris Olsen. The core knowledge you learn from this book will help with the current exam.
Of course, http://www.cisco.com should be included in your prep material.