Home > Articles > Cisco Unified Communications Manager Deployment Models

Cisco Unified Communications Manager Deployment Models

Chapter Description

In this chapter from Implementing Cisco IP Telephony and Video, Part 1 (CIPTV1) Foundation Learning Guide (CCNP Collaboration Exam 300-070 CIPTV1), 3rd Edition, the author team introduces Cisco Unified Communications Manager (CUCM) and explores different redundancy models.

Chapter Summary

The following list summarizes the key points that were discussed in this chapter:

  • Supported CUCM deployment models are Single-Site (Campus), Multisite with Centralized Call Processing, Multisite with Distributed Call Processing, and Clustering over the IP WAN.

  • In the Single-Site deployment model, the CUCM, applications, and DSP resources are at the same physical location; all offsite calls are handled by the PSTN.

  • The Multisite with Centralized Call Processing model has a single CUCM cluster. Applications and DSP resources can be centralized or distributed. The IP WAN carries call-control signaling traffic, even for calls within a remote site.

  • The Multisite with Distributed Call Processing model has multiple independent sites, each with a CUCM cluster; the IP WAN carries traffic only for intersite calls.

  • Clustering over the WAN provides centralized administration, a unified dial plan, feature extension to all offices, and support for more remote phones during failover, but it places strict delay and bandwidth requirements on the WAN.

  • Clustering provide redundancy. A 1:1 redundancy design offers the highest availability but requires the most resources and is not as cost-effective as 2:1 redundancy.

11. Reference | Next Section Previous Section

There are currently no related articles. Please check back later.