Chapter 3
Call Routing
Taking advantage of a digital assistant (“Siri, call Cisco TAC”) is now an easy way to call family, friends, and businesses. Though this engagement may seem simple, a plethora of technical operations are happening in the background to make this call routing magic occur. This chapter provides insights into how SBCs play a role in routing calls across enterprise and service provider networks.
This chapter consists of the following sections:
Dialing and Routing a SIP Call—This section introduces dialing concepts based on telephone number and uniform resource identifiers (URIs). It also takes a detailed protocol-level look at how a SIP call originates and routes across SIP devices.
Call Routing Types—This section discusses ...
Get Understanding Session Border Controllers: Comprehensive Guide to Designing, Deploying, Troubleshooting, and Maintaining Cisco Unified Border Element (CUBE) Solutions now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
