Configuring the cisco phone proxy, Information about the cisco phone proxy, Phone proxy functionality – Cisco ASA 5505 User Manual

Page 983: C h a p t e r, Chapter 48, “configuring the, Cisco phone proxy

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C H A P T E R

48-1

Cisco ASA 5500 Series Configuration Guide using the CLI

48

Configuring the Cisco Phone Proxy

This chapter describes how to configure the adaptive security appliance for Cisco Phone Proxy feature.

This chapter includes the following sections:

Information About the Cisco Phone Proxy, page 48-1

Licensing Requirements for the Phone Proxy, page 48-4

Prerequisites for the Phone Proxy, page 48-6

Phone Proxy Guidelines and Limitations, page 48-12

Configuring the Phone Proxy, page 48-14

Troubleshooting the Phone Proxy, page 48-27

Configuration Examples for the Phone Proxy, page 48-43

Feature History for the Phone Proxy, page 48-53

Information About the Cisco Phone Proxy

The Cisco Phone Proxy on the ASA bridges IP telephony between the corporate IP telephony network
and the Internet in a secure manner by forcing data from remote phones on an untrusted network to be
encrypted.

Phone Proxy Functionality

Telecommuters can connect their IP phones to the corporate IP telephony network over the Internet
securely via the phone proxy without the need to connect over a VPN tunnel as illustrated by

Figure 48-1

.

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