Avaya 3641/3645/6120/6140 IP Wireless Handset SIP Administration Guide June 2012 111
Appendix B: Remote configuration
parameters definition
The following table describes the parameters that can be used in the remote
configuration file. This file is typically named 46xxsettings.txt and includes a 364x
endpoint section. Parameters below followed by an asterisk are those that are common
with at least one other Avaya phone. The 364x endpoint section contains parameters
that are specific to the Avaya 3641/3645/6120/6140 IP Wireless Handsets.
Note that double quotes can be used around the entire value that a parameter is set to,
with the exception of the SIP_FAVORITES parameter. They can also be used to denote
the NULL string (“”). They cannot be used any other way except on the
SIP_FAVORITES parameter. See the sample file for more information.
Persistency
The handset saves configuration information in its memory and uses the information if
the value is not available otherwise. This persistence is true for all the parameters.
In order to remove a parameter that was previously set and no longer needed, one must
set it to the null string (“”) in the configuration file. The null string can be used to clear out
any parameter that is a string or an IP address. Other parameters, such as a port
address, have to be deliberately set back to the default to get rid of a particular
definition. For parameters that are enabled or disabled, just removing them from the
configuration file does not disable them if they were previously enabled, you must
deliberately set them to 0 to disable them (for instance, the OAI_ENABLE parameter).
In some installations, it is advisable to set all user specific values, such as lines, to the
null string rather than leaving them un-configured.
Precedence and how the handset initializes and uses the supplied parameters
If the handset is configured to use DHCP, it initializes using the values supplied by
DHCP (non-SSON data). Note that these values supplied by non-SSON DHCP are used
by the handset, but they are not stored in persistent storage on the handset. If any of the
requested parameters are not supplied by non-SSON DHCP, values for those same
parameters in persistent storage (if any) will be used. Then the handset parses the
SSON data and any values specified in this data are saved in persistent storage on the
handset (overwriting any previously saved data). The handset will start using the new
values immediately as long as these are values that do not require a config reboot.
If the handset is not configured to use DHCP, it initializes using values from persistent
storage on the handset.
Next, the handset reads in the generic config file if possible. Any values specified in this
generic config file are saved in persistent storage on the handset (overwriting any
previously saved data). The handset will start using the new values immediately as long
as these are values that do not require a config reboot.