ley Cisco Press EXAM/CRAM PRENTICE Safari" Press Books Online LearnIT at InformIT Looking for a book, eBook, or training video on a new technology? Seeking timely and relevant information and tutorials? Looking for expert opinions, advice, and tips? InformIT has the solution. Learn about new releases and special promotions by subscribing to a wide variety of newsletters. Visit informit.com/newsletters. Access FREE podcasts from experts at informit.com/podcasts. Read the latest author articles and sample chapters at informit.com/articles. Access thousands of books and videos in the Safari Books Online digital library at safari.informit.com. Get tips from expert blogs at informit.com/blogs. Visit informit.com/learn to discover all the ways you can access the hottest technology content. Are You Part of the IT Crowd? Connect with Pearson authors and editors via RSS feeds, Facebook, Twitter, YouTube, and more! Visit informit.com/socialconnect. informIT.com PEARSON THE TRUSTED TECHNOLOGY LEARNING SOURCE Addison-Wesley Cisco Press EXAM/CRAM PRENTICE Press Safari" Books Online 01/11/11 CISCO IP COMMUNICATIONS FREE Online Edition SIP Trunking Migrating from TDM to IP for Business to Business Communication Christina Hattingh Darryl Sladden ATM Zakaria Swapan Your purchase of SIP Trunking includes access to a free online edition for 45 days through the Safari Books Online subscription service. Nearly every Cisco Press book is available online through Safari Books Online, along with more than 5,000 other technical books and videos from publishers such as Addison-Wesley Professional, Exam Cram, IBM Press, O'Reilly, Prentice Hall, Que, and Sams. SAFARI BOOKS ONLINE allows you to search for a specific answer, cut and paste code, download chapters, and stay current with emerging technologies. Activate your FREE Online Edition at www.informit.com/safarifree STEP 1: Enter the coupon code: CGWCIWH. STEP 2: New Safari users, complete the brief registration form. Safari subscribers, just log in. If you have difficulty registering on 