Administration Overview and Requirements
General information about administering DHCP servers is covered in DHCP and File Servers on page 53, and more specifically, DHCP Server Administration on page 54. General information about administering HTTP servers is covered in DHCP and File Servers, and more specifically, HTTP Generic Setup. Once you are familiar with that material, you can administer telephone options as described in Chapter 8: Administering Telephone Options.
Parameter Data Precedence
As shown in Table 1: Administration Alternatives and Options for 9600 Series SIP IP Telephones, you can administer a given parameter in a number of ways. If a given parameter is administered through different mechanisms, the last server to provide the parameter has precedence. The precedence, from lowest to highest, is:
1.LLDP
2.DHCP
3.Settings file
4.Personal Profile Manager (PPM),
Note:
Exception: In the case of the parameter SIPDOMAIN, the settings file has a higher precedence than PPM.
5.Manual administration, unless the system parameter USE_DHCP is set to 1 (Get IP Address automatically by DHCP), or backup file data obtained through PPM.
For example, if the SIP outbound proxy server address is defined to have the precedence information so that the value retrieved from DHCP server has a lower precedence than the value retrieved from the settings file, and the value retrieved from the settings file is higher than the value retrieved from PPM, then the following determination occurs:
●If the most recent value the telephone has is from DHCP and new server address information is retrieved from the settings file, the telephone will use the new value from the settings file.
●If later on, the telephone receives a new server address value from PPM, it will not use this value because PPM’s precedence as a data source for the server address is lower than the current value (which came from the settings file).
●If the server to which a specific telephone points is changed manually using the Craft ADDR procedure, that value now takes precedence over the previous value.
18 9600 Series SIP IP Telephones Administrator Guide SIP Release 2.0
