Configuring Cisco Unified CallManager to Support IP Phones

This chapter covers the following topics:

• Configuring Cisco Unified CallManager to support Cisco IP Phone registration and communication within the cluster
• Required elements to create a device pool
• Applying required settings to a Cisco IP Phone through a device pool
• Manually and automatically registering Cisco IP Phones into the SQL database

After reading the previous chapter, you decided to purchase ten Cisco IP Phones, one of each model. You receive them in the mail, unwrap them (filling the air with the scent of fresh cellophane), and set them on the desk. Nothing happens. Now what? Now you must configure the Cisco CallManager to support the IP Phones. Without the Cisco CallManager, these devices are nothing more than expensive paperweights.

This chapter describes the Cisco CallManager configuration to support Cisco IP Phones. You will learn how to configure Cisco CallManager to manually and automatically add IP Phones and assign directory numbers (DNs). You will also learn how to configure device pools to provide a convenient way to define a set of common characteristics that can be assigned to devices, such as date or time zone, codec use, and other functionalities.