This chapter provided an architectural overview of the two main Cisco IPC Express components: Cisco CME, the router-based call processing engine, and Cisco UE, the AA and voice mail applications engine.
The Cisco CME architecture was discussed within the larger scope of Cisco IOS-based voice services. This chapter covered how Cisco CME features and services fit within, and reuse, fundamental Cisco IOS voice infrastructure, such as dial peers and PSTN trunk interfaces. It also discussed how the Cisco CME software handles the different VoIP protocols, including SCCP, H.323, and SIP. This included considerations such as firewalls and NAT.
Cisco UE hardware is a module that fits within the router. You learned how this hardware communicates with the router hardware and software. The Cisco UE applications environment is based on Linux. The software components, structure, and interactions between subsystems also were explained.
All this information provides a solid understanding for the fundamental components and functions of a Cisco IPC Express system. The chapters in Part II of this book describe in much more detail exactly what the Cisco IPC Express features are, how they can work in your business, and how you can configure and manage the system to your best advantage. Part III draws on this architectural information, because a fundamental understanding of the system components is necessary to troubleshoot the system.
Part I: Cisco IP Communications Express Overview
Introducing Cisco IPC Express
Building a Cisco IPC Express Network
Cisco IPC Express Architecture Overview
Part II: Feature Operation and Applications
Cisco IP Phone Options
Cisco CME Call Processing Features
Cisco CME PSTN Connectivity Options
Connecting Multiple Cisco CMEs with VoIP
Integrating Cisco CME with Cisco CallManager
Cisco IPC Express Automated Attendant Options
Cisco IPC Express Integrated Voice Mail
Cisco CME External Voice Mail Options
Additional External Applications with Cisco CME
Part III: Administration and Management
Cisco IPC Express General Administration and Initial System Setup
Configuring and Managing Cisco IPC Express Systems
Cisco IPC Express System Configuration Example
Part IV: Maintenance and Troubleshooting
Troubleshooting Basic Cisco IPC Express Features
Troubleshooting Advanced Cisco CME Features
Troubleshooting Cisco CME Network Integration
Troubleshooting Cisco UE System Features
Troubleshooting Cisco UE Automated Attendant
Troubleshooting Cisco UE Integrated Voice Mail Features
Part V: Appendixes
Appendix A. Cisco IPC Express Features, Releases, and Ordering Information
Appendix B. Sample Cisco UE AA Scripts
Appendix C. Cisco Unity Express Database Schema