IP Softphone how to get the log files

To enable the logging
(edit the file "C:\Program Files (x86)\Panasonic\KX-NCS8100 IP softphone\parameters.txt
set 1 to parameter 07
(0:'softphone.log' is not used. 1:'softphone.log' is used)

You should get then a file "softphone.log" in the same folder after doing some test connections etc.