Cisco ASA Series Cli Configuration Manual page 1223

Chapter 1 Configuring the Cisco Phone Proxy
Command
Step 1
hostname(config)# phone-proxy phone_proxy_name
Example:
hostname(config)# phone-proxy myphoneproxy
Step 2
hostname(config-phone-proxy)# media-termination
instance_name
Examples:
hostname(config-phone-proxy)# media-termination
my_mt
Step 3
hostname(config-phone-proxy)# tftp-server address
ip_address interface interface
Example:
hostname(config-phone-proxy)# tftp-server address
192.0.2.101 interface inside
Step 4
hostame(config-phone-proxy)# tls-proxy proxy_name
Example:
hostame(config-phone-proxy)# tls-proxy mytls
Step 5
hostname(config-phone-proxy)# ctl-file ctl_name
Example:
hostame(config-phone-proxy)# ctl-file myctl
Step 6
hostname(config-phone-proxy)# proxy-server address
ip_address [listen_port] interface ifc
Example:
hostname(config-phone-proxy)# proxy-server
192.168.1.2 interface inside
Configuring the Phone Proxy
Purpose
Creates the phone proxy instance.
Only one phone proxy instance can be configured on
the security appliance.
Specifies the media termination instance used by the
phone proxy for SRTP and RTP.
Note
You must create the media termination
instance before you specify it in the phone
proxy instance.
See Creating the Media Termination Instance,
page 1-23 for the steps to create the media
termination instance.
Creates the TFTP server using the actual internal
address and specify the interface on which the TFTP
server resides.
Configures the TLS proxy instance that you have
already created.
Configures the CTL file instance that you have
already created,
(Optional) If the operational environment has an
external HTTP proxy to which the IP phones direct
all HTTP request, configures a proxy server.
You can configure only one proxy server while the
phone proxy is in use.
By default, the Phone URL Parameters configured
under the Enterprise Parameters use an FQDN in the
URLs. The parameters might need to be changed to
use an IP address if the DNS lookup for the HTTP
proxy does not resolve the FQDNs.
Note
If the IP phones have already downloaded
their configuration files after you have
configured the proxy server, you must restart
the IP phones so that they get the
configuration file with the proxy server
address in the file.
Cisco ASA Series CLI Configuration Guide
1-25