Supported configuration file types
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Table 9-1    Supported configuration files 
 
File Index  Description  Details  Supported ONTs/DPU 
 
PRE  ONT pre-configuration 
file 
 
The XML-based PRECONFIG file controls the working 
mechanics of the ONT for various services. The default 
behavior of different ONTs may vary based on the factory 
settings. 
The pre-configuration file includes the factory default value 
for the residential gateway. 
Note: the pre-configuration file does not work with SFU 
ONTs; therefore, this feature applies only to Residential 
Gateway ONTs. 
The pre-configuration file can be used as is, but Nokia 
provides its customers with the flexibility to customize the 
pre-configuration file. 
This pre-configuration file enables operators to change the 
default behavior by downloading a customized 
pre-configuration based on customer inputs. 
This PRE XML file includes a custom OPERID. 
The Nokia defined index for the PRECONFIG file is: "PRE" 
 
All Nokia GPON and 10 
GPON ONT. 
 
CFG  ONT configuration delta 
file 
 
The XML-based CFG file updates the configurable 
parameters (the PRE settings) in the existing PRE file of a 
deployed ONT, where required. 
This configuration file enables operators to change the 
deployed behavior by downloading customized updates in 
the CFG file. 
This file is used only to modify the parameters in the PRE 
file; it is not used for service provisioning. 
No OPERID is required, because the update is based on the 
OPERID used for the PRE file. 
The Nokia defined index for the PRECONFIG DELTA file is: 
"CFG" 
 
All Nokia GPON and 
10GPON ONT. 
 
 
XML  Voice XML file  The Voice XML file provides an alternate method for 
securely downloading voice parameters from the OLT, rather 
than using FTP (OMCIv1/OMCIv2) or HTTPS (TR-069). 
Downloading this file makes the applicable changes in the 
voice parameters. 
This file enables operators to change the voice behavior by 
downloading the updated voice XML file. 
Nokia recommends using this procedure, rather than 
embedded voice XML files. 
The Nokia defined index for the Voice XML file is: "XML" 
All Nokia GPON and 10 
GPON ONT.