Yealink SIP-T2 Series Auto Provisioning Manual page 13

Common CFG file contains configuration parameters which apply to phones with the
same model, such as language, time and date.
The line beginning with "#" is considered to be a comment.
The file header "#!version:1.0.0.1" is not a comment and must be placed in the first line. It
cannot be edited or deleted.
The parameters commonly edited in the Common CFG file are described as follows
(Take T2xP IP phones as an example):
####################################################
##
####################################################
#!version:1.0.0.1
##The file header "#!version:1.0.0.1" is not a comment and must be placed in the first
line. It cannot be edited or deleted. ##
#Configure the transmission mode and the speed of the WAN port.
#0-Auto negotiate (default), 1-Full duplex 10Mbps, 2-Full duplex 100Mbps, 3-Half
duplex 10Mbps, 4-Half duplex 100Mbps;
network.internet_port.speed_duplex =
#Configure the user name and password for PPPoE connection.
Common CFG File
Getting Started
##
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