Cisco Systems ATA187I1ARF Manual De Usuario

The ATA 187 enables you to communicate using voice over a data network. To provide this capability, 
the ATA 187 depends upon and interacts with several other key Cisco Unified IP Telephony and network 
components, including Cisco Unified Communications Manager, DNS and DHCP servers, TFTP 
servers, media resources, and so on.

This chapter focuses on the interactions between the ATA 187, Cisco Unified Communications Manager, 
DNS and DHCP servers, TFTP servers, and switches. It also describes options for powering the 
ATA 187.

For related information about voice and IP communications, see this URL:

This chapter provides an overview of the interaction between the ATA 187 and other key components of 
the Voice over IP (VoIP) network. It includes these topics:

To function in the IP telephony network, the ATA 187 must be connected to a networking device, such 
as a Cisco Catalyst switch. You must also register the ATA 187 with a Cisco Unified Communications 
Manager system before sending and receiving calls.

This section includes information on