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Enterprise and service provider networks are increasingly adopting
SIP as guiding protocol for session setup and tear down, and
integrating Back to Back User Agent (B2BUA) and Session Border
Controller (SBC) technology to enable this shift. Thousands of
organizations have chosen the Cisco Unified Border Element (CUBE)
as their B2BUA/SBC technology of choice. Understanding Session
Border Controllers is the first comprehensive guide for network
professionals and consultants who want to successfully master
B2BUA/SBC theory, design, deployment, integration, operation,
security, and troubleshooting. Using examples based on CUBE, the
authors offer insights that will be valuable to technical
professionals using any B2BUA/SBC solution, in any environment.
Coverage includes: Key benefits of B2BUA/SBC, including topology
abstraction, demarcation and security, media/protocol interworking,
and interoperability with widely-diverse nodes Core concepts of
SIP, H.323, DTMF, Fax/Modem over IP, Voice security, Media
handling, and media/signal forking, and how they relate to
B2BUA/SBC Efficient B2BUA deployment scenarios Securely migrating
real-time communication over IP Using B2BUA to interoperate between
asymmetric VoIP networks Establishing interoperability with call
servers, proxies, fax servers, ITSPs, SIP registrar servers,
redirect servers, and other devices
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