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Initialization Process
Issue 2.2 April 2005 37
The telephone queries the file server, which transmits a script file to the telephone. This script
file, at a minimum, tells the telephone which application file the telephone must use. The
application file is the software that has the telephony functionality, and can be easily updated for
future enhancements.
The telephone uses the script file to determine if it has the proper application file. A newly
installed telephone may have no application file, and therefore would not have the proper one. A
previously installed telephone might not have the proper application file. If the telephone
determines the application file indicated in the script file is missing, the telephone requests a
download of the proper application file from the file server. The file server then downloads the
file and conducts some checks to ensure that the file was downloaded properly. If the telephone
determines it already has the proper file, the phone proceeds to the next step without
downloading the application file again.
After checking and loading the application file, the 4600 Series IP Telephone, if appropriate,
uses the script file to look for a settings file. The settings file can contain options you have
administered for any or all of the 4600 Series IP Telephones in your network. For more
information about this settings file, see Administering Options for the 4600 Series IP
Telephones on page 80.
Step 4: Telephone and the Avaya Media Server
In this step, the telephone and the PBX exchange a series of messages which cause the
display on the telephone to prompt the user. For a new installation, the user must enter the
telephone’s extension and the media server password. For a restart of an existing installation,
this information is already stored on the telephone, but the user might have to confirm the
information. The telephone and the switch exchange more messaging, with the expected result
that the telephone is appropriately registered on the switch.
More details about the installation process are available in the 4600 Series IP Telephone
Installation Guide and in Chapter 3: Requirements
of this document.