This chapter covers the networking components that are used with Cisco Unity to establish
communication with other messaging systems for voice mail, e-mail, and fax.
Messaging within an organization is vital for everyday business, with each organization
having speciﬁc requirements and needs to exchange information internally and externally.
This chapter explores the different ways in which Cisco Unity can be set up to provide
connectivity to other Cisco Unity systems and to non–Cisco Unity recipients, and describes
the components involved. It contains basic and advanced areas of Cisco Unity networking
with Microsoft Exchange and Lotus Notes.
Cisco Unity Networking Fundamentals
This section explores the areas that are important to networking with Cisco Unity. It
explains directory replication, location objects, dialing domains, and the different types of
networking offered by Cisco Unity.
Before you implement networking between Cisco Unity and other messaging systems
(which may include another Cisco Unity server), you must ﬁrst understand the basic
concepts and terminology on which it is built. This section deﬁnes all the fundamental
concepts for each of the later sections that concentrate on speciﬁc implementations of
To beneﬁt fully from this section, it is recommended that you have these prerequisite skills
and knowledge. (If you need a quick review of either topic, see Chapter 1, “Cisco Uniﬁed
Communications System Fundamentals,” where you can ﬁnd more information.)
• An understanding of the standard features of Cisco Unity
• An understanding of the Cisco Unity call ﬂow
Deﬁning Cisco Unity Networking
In Cisco Unity, “networking” is the general term for deﬁning messaging between Cisco
Unity servers and Cisco Unity and other messaging systems. In these cases, messaging
systems may include voice mail, e-mail, and fax messaging.