Version 5.2 245 September 2007
SIP User's Manual 5. Web-based Management
5.12.2 Automatic Update Mechanism
The gateway can automatically update its cmp, ini, and configuration files. These files can
be stored on any standard Web, FTP, or NFS server and can be loaded periodically to the
gateway via HTTP, HTTPS, FTP, or NFS. This mechanism can be used even for gateways
that are installed behind NAT and firewalls.
The Automatic Update mechanism is applied separately to each file. For a detailed list of
available files and their corresponding parameters, refer to 'System Parameters' on page
280.
Note: The Automatic Update mechanism assumes the external Web server
conforms to the HTTP standard. If the Web server ignores the If-Modified-
Since header, or doesn’t provide the current date and time during the HTTP
200 OK response, the gateway may reset itself repeatedly. To overcome this
problem, adjust the update frequency (AutoUpdateFrequency).
The following methods are used to activate the Automatic Update mechanism:
îš„ After the gateway starts up (refer to the Startup process described in 'Startup Process'
on page 48).
îš„ At a configurable time of day (e.g., 18:00) using the ini file parameter
AutoUpdatePredefinedTime. This option is disabled by default.
îš„ At fixed intervals (e.g., every 60 minutes) using the ini file parameter
AutoUpdateFrequency. This option is disabled by default.
The following ini file example can be used to activate the Automatic Update mechanism.
# DNS is required for specifying domain names in URLs
DnsPriServerIP = 10.1.1.11
# Load an extra configuration ini file using HTTP
IniFileURL = 'http://webserver.corp.com/AudioCodes/inifile.ini'
# Load Call Progress Tones file using HTTPS
CptFileUrl = 'https://10.31.2.17/usa_tones.dat'
# Load Voice Prompts file using FTPS with user ‘root’ and password ‘wheel’
VPFileUrl = 'ftps://root:wheel@ftpserver.corp.com/vp.dat'
# Update every day at 03:00 AM
AutoUpdatePredefinedTime = '03:00'
# Note: The cmp file isn’t updated since it's disabled by default
(AutoUpdateCmpFile).
Note the following:
îš„ When HTTP or HTTPS are used, the gateway queries the Web server/s for the
requested files. The ini file is loaded only if it was modified since the last automatic
update. The cmp file is loaded only if its version is different from the version stored on
the gateway's non-volatile memory. All other auxiliary files (e.g., CPT) are updated
only once. To update a previously loaded auxiliary file, you must update the parameter
containing its URL.
 To load different configurations (ini files) for specific gateways, add the string ‘<MAC>’
to the URL. This mnemonic is replaced with the gateway's hardware MAC address,
resulting in an ini file name request that contains the gateway's MAC address.
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