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The SBC Buyer’s GuideWhat Every Enterprise Should Know Before Buying an SBCE N T E R P R I S Ewww.sonus.net


Table of ContentsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Shopping for an SBC.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 1The Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Session Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Call Routing/Policy Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2SIP Interoperability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Media Transcoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3DTMF/Fax Interworking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Scalability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Feature Comparisons: A Look at the Top Three SBCs. . . . . . . . . 4How They Stack Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Options for Sourcing a Session Border Controller ... .. .. .. .. .. .. .. .. .. 6Direct vs Indirect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Types of Resellers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Things to Consider When Sourcing an SBC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7The Buyer’s Conclusion... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 7Appendix A: Benefits of SIP Trunking ... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 7Appendix B: ROI Case Studies. . . . . . . . . . . . . . . . . . . . . . 8Appendix C: An SBC Buyer’s Checklist . . . . . . . . . . . . . . . . . 9


Sonus Networks, Inc. 4 Technology Park Drive Westford, MA 01886 1.978.614.8100The content in this document is for informational purposes only and is subject to change by Sonus Networks without notice. While reasonable efforts have been made in the preparation of this publicationto assure its accuracy, Sonus Networks assumes no liability resulting from technical or editorial errors or omissions, or for any damages resulting from the use of this information. Unless specificallyincluded in a written agreement with Sonus Networks, Sonus Networks has no obligation to develop or deliver any future release or upgrade or any feature, enhancement or function.Copyright © 2012 Sonus Networks, Inc. All rights reserved. Sonus is a registered trademark of Sonus Networks, Inc.. All other trademarks, service marks, registered trademarks or registered service marksmay be the property of their respective owners.Printed in the USA 04/12WP-1183

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