Cisco CallManager System Guide, Release 3.1(1)
System Configuration Overview

Table Of Contents

System Configuration Overview

Basic Configuration Flow

Where to Find More Information

System Configuration Overview

For best results when configuring a complete Cisco IP telephony system, start with the system-level components and work toward the individual devices. For example, you have to configure the appropriate device pools, route patterns, and calling search spaces before you can use those components to configure phones and lines.

This chapter presents an overall flow, or order, for configuring the components of your Cisco IP telephony network. It covers the following topics:

Basic Configuration Flow

Where to Find More Information

Basic Configuration Flow

Table 3-1 lists the general steps involved in configuring a complete IP telephony system. If you are not using a particular feature or component, you can skip that step. You have some flexibility in the order for performing these configuration steps, and in some cases you might have to alternate between steps or return to a given step several times to complete your configuration.

Table 3-1 Configuration Overview Checklist 

Configuration Steps
Procedures and related topics

Step 1 

Install the Cisco CallManager software on your servers, and configure the servers as needed for TFTP, database publisher, and database subscriber services.

Refer to Installing Cisco CallManager Release 3.1 and to the "Server Configuration" section in the Cisco CallManager Administration Guide.

Step 2 

Configure system-level settings:

Cisco CallManager groups

Date/time groups


Device pools

Device defaults

Enterprise parameters


See the "System-Level Configuration Settings" section.

Step 3 

Design and configure your dialing plan:


Calling search spaces

Route filters

Route groups

Route lists

Route patterns

Translation patterns

See the "Partitions and Calling Search Spaces" section and the "Understanding Route Plans" section.

Step 4 

Configure media resources:

Conference bridges


Media termination points

Music on hold

Media resource groups

Media resource group lists

See the "Media Resource Management" section.

Also refer to the "Media Resource Group Configuration" section in the Cisco CallManager Administration Guide.

Step 5 

Install and configure one of the following voice messaging systems:

External (non-Cisco) voice messaging system

Cisco Unity voice messaging system

Cisco uOne voice messaging system

See one of the following sections:

"SMDI Voice Mail Integration" section

"Cisco uOne Voice Messaging Integration" section

Step 6 

Configure system-wide features:

Call park

Call pickup and group call pickup

Cisco IP phone services

Extension mobility

Cisco WebAttendant

Custom phone rings

See the following sections:

"Call Park" section

"Call Pickup and Group Call Pickup" section

"Cisco IP Phone Services" section

"Extension Mobility and Phone Login Features" section

"Understanding Cisco WebAttendant" section

"Custom Phone Rings" section

Step 7 

Install and configure the gateways.

See the "Understanding Voice Gateways" section.

Step 8 

Configure and install the phones; then, associate users with the phones.

See the "Cisco IP Phones" section and the "Managing User Directory Information" section.

Step 9 

Enable computer telephony integration (CTI) application support; then, install and configure the desired CTI applications.

See the "Computer Telephony Integration" section.

Where to Find More Information

Related Topics

See Table 3-1.

Additional Cisco Documentation

Installing Cisco CallManager Release 3.1

Cisco CallManager Administration Guide