3.1 Implementing a +E.164-Based Dial Plan for International Multisite Deployments – Introduction

Cisco Unified Communications Manager multisite deployments can use various connection options between sites.

Multisite dial plans must address special issues, such as overlapping and nonconsecutive directory numbers,PSTN access, PSTN backup, and TEHO.

In this section, we describe multisite connection options and explains how to build multisite dial plans using Cisco Unified Communications Manager and Cisco IOS gateway configuration.