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Using Configuration Files
Table 3-2
Default MGCP Configuration File Parameters (continued)
Parameter
mgcp_output_port
nat_enable
nat_address
phone_password
phone_prompt
services_url
sntp_mode
sntp_server
telnet_level
tftp_cfg_dir
time_format_24hr
Cisco MGCP IP Phone Administrator Guide, Release 5.0 and Release 5.1
3-6
Description
Port on which the the phone transmits. The default is 2427.
Use 0 to disable NAT and 1 to enable NAT. Default is 0. If NAT is enabled, the
Session Description Protocol (SDP) message uses the nat_address and an RTP
port between the start_media_port and the end_media_port range in the C and
M fields. All RTP traffic is sourced from the port advertised in the SDP.
The WAN IP address of the NAT or firewall server. You can use either a dotted
IP address or a DNS name (a record only).
Password to be used for console or telnet access. The default password is cisco.
Prompt to be displayed when using telnet or console access. The default phone
prompt is "MGCP Phone."
URL of the services BTXML files. This URL is accessed when the Services
button is pressed. For example, use services_url:
"http://10.10.10.10/CiscoServices/Services.asp"
Mode in which the phone will listen for the SNTP server. Valid values are
unicast, multicast, anycast, or directedbroadcast. See
IP address of the SNTP server from which the phone will obtain time data. If
the SNTP server is set to 0 or not set, the MGCP software defaults the SNTP
server address to the address of the CA.
See
Table 3-3
for more information.
Enables Telnet for the phone.
Valid values are:
0 — Telnet is disabled
•
1 — Telnet is enabled, no privileged commands
•
2 — Telnet is enabled and privileged commands can be executed
•
The default value is 0.
Path to the TFTP subdirectory in which phone-specific configuration files are
stored.
Note
Exists only in the MGCDefault.cnf file.
Whether a 12 or 24-hour time format is displayed by default on the phones' user
interface. Valid values are:
•
0—The 12-hour format is displayed by default but can be changed to a
24-hour format via the phone's user interface.
•
1—The 24-hour format is displayed by default but can be changed to a
12-hour format via the phone's user interface.
•
2-The 12-hour format is displayed and cannot be changed to a 24-hour
format via the phone's user interface.
•
3—The 24-hour format is displayed and cannot be changed to a 12-hour
format via the phone's user interface.
The default value is 1.
Chapter 3
Configuring the Cisco MGCP IP Phone
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