Cisco ICOMM 8.0: Call Flows in CUC Systems

Overview/Description
IP telephony networks require seamless integration with the public switched telephone network (PSTN). With multiple call paths available, network administrators need to have an in-depth understanding of call routing in order to control the path that is taken for a particular call, and of course, to control call costs. A telephony class of service (CoS) implementation means that not all users can access all call routing table entries. The result is that for a specific calling device or line, some destinations are permitted while others are not. This lesson describes an overview of call flows as well as the configuration components that impact call legs in Cisco Unified Communications Manager and Cisco Unified Communications Manager Express. The concept of calling privileges and how they can be implemented on Cisco Unified Communications Manager Express routers using class of restriction (COR) is also discussed.

Target Audience
Individuals seeking to obtain effective skills to administer technologies in a voice network. Candidates should have completed 640-802 Cisco Certified Network Associate, or 640-822 Interconnecting Cisco Networking Devices Part 1 and 640-816 Interconnecting Cisco Networking Devices Part 2. Candidates should also have working knowledge of converged voice and data networks, basic knowledge of Cisco IOS gateways, and basic knowledge of Cisco Unified Communications Manager and Cisco Unity Connection.

Expected Duration (hours)
2.5

Lesson Objectives

Cisco ICOMM 8.0: Call Flows in CUC Systems

identify the key characteristics of Cisco Unified Communications Manager call flows and call legs

identify the features of call flow for automated alternate routing

identify how Cisco Unified Communications Manager Express call flows and call legs use dial peers

configure dial peers that enable outbound PSTN calls from a branch site

configure a branch router to place VoIP calls with a Cisco Unified Communications Manager cluster

recognize the considerations involved in implementing CoS

identify key call routing considerations in Cisco Unified Communications Manager

recognize call coverage considerations in Cisco Unified Communications Manager

configure Cisco Unified Communications Manager Express COR

identify the call routing considerations in Cisco Unified Communications Manager Express